I don't believe that this offer is doable at all without paying at least a few dollars. The time limit is 20 days and it says to get to level 40. Seems easy enough, right? 40 isn't that big of a level compared to the level 70/100/200 we're used to seeing.
Well, not really. In fact, I'd argue it's much worse than Huuuge or Billionaire casino, because they give you 2x coupons for exp.
Despite me playing every single day, whilst heavily babysitting the app, and even investing $15 to finish the offer, I struggle to even level up once a day. Jackpots are a help but ones that actually get you anywhere or are 'big wins' are so far and few in-between. I've only won one major jackpot through one of the bonus games, (I was around 100m-200m coins) and while it helped, it did not get me much closer to my goal. Betting the minimum spin still drains my coins. I claim the FB coins and the daily login coins every day.
It's hard to maintain your chips and levelling up is even worse (0.03% at a 440k bet, which is hard to maintain since chips drain fast, even if you're playing at less than 1% of your total balance). The bonus game is VERY inconsistent. At first I assumed it'd be triggered when the coin bowl at the top filled, but no. Sometimes it'll require another 50+ spins for it to trigger, and if you change your bet, you will have a much smaller earn even if you were betting 2m+ per spin.
I still have not finished the app after 10 days of consistent and daily playing. I'm at level 35 finally, but I'm not even sure if I'll be able to pull through without another purchase (which I really don't want to do). Overall, you are way better of going for something like Pop Slots (which is super do-able) or Huuuge Casino. End of rant.

It took me 7 days primarily low betting the whole time to reach level 100. (9 to reach level 110.) Whenever I bet higher than 350-450K, usually, my coins just plummeted within minutes. I think anyone who reached level 100 within 1-3 days bet higher and lucked out tremendously.
Slow and steady guide:

1. Join a club. The higher AND more active the better. Absolute highest is Master 1. From what I've seen, Master I, II and III required players to be a minimum level (like 100+) to join and/or a request to join (mine was never accepted). Unlike similar casino games, Stars Slots won't let you do an advanced search. You can search for a specific club if you know any names, however. So you are left with the option to join the first club on the list that currently has the most collective coins made and which allows members of your current level to join. Either that or create a club (don't recommend). So go ahead and join that first one, but change later based on step #3’s information. Also, the higher the club the bigger percentage of extra free coins you get from different sources within the game. So it goes Master I, II, III, World Class I, II, III, Expert I, II, III, and last is Pro I. Since I couldn't join Master clubs I did best in World II and World I.
2. Collect coins. The FB group, free coins from https://www.peoplesgamezgiftexchange.com/stars-slots-free-chips/gifts or similar website, starting with the most recent and going back as far as you can. Within the game: Once daily spin the wheel; Star Bonus every 60 minutes from far bottom left side of home screen; Huuuge Heist (unlock at level 35) every 15 hours (beside Star Bonus) (the 15 hours increase the higher a level you are at for longer wait)... make sure you've gathered bucks (can see next to dollar image under coin image at top left) (amount of bucks needed increase the higher a level you are at) in case you get an empty box and want to keep what you've won so far with boxes. Tip: An empty box for one round, for example the first one, can also be the empty one in the very next round; it's random each round. I was terrible at this game and should've clicked "give up" sooner than keep gambling; Lottery (ticket to play) every 6 hours (some say value goes up at level 70, so to save them. User batmanbnb below states to save bronze tickets until level 70. It’s up to you whether to save tickets or not.); click on Shop (top middle in green) and on the top right you can click and collect free coins every 8 hours; at the bottom of the Shop screen OR to the right of the Shop image on the home screen you click and watch a video to collect coins, until you can no longer watch, every 8 hours. Also collect coins from club members every time they hit a jackpot and 1 million coins just for first time joining any club through Stars League (middle bottom of home screen).
3. When you join a club click on a team member's profile and connect and you'll get an option to connect/friend every member in the club. I did this and connected to as many people during games I played until I reached my limit. I figured people in the clubs I joined, even lower level clubs, may leave and join higher ones like I did. Probably would be a good idea to go to a tier II game (the middle option for higher betting than Beginner called High Limit once you've unlocked it) and connect to players currently playing it since they have high enough coins to play that. You don't have to play yourself if you don't want to: just drop in, connect, and leave. Then, at the bottom right of the home screen click on Social and you'll see every friend you have. What I did was click on those who had the highest coins at the time and see what club they were a part of: If the club was World II or higher I joined it. Question: What if you want to do better than this club you found (either through this method or the Join Club list) either because its level is too low or not active enough players? Click on Stars League (middle bottom of home screen) then click on Seasons (to the right of Members). This shows you where your club is currently placed. If you see higher placed clubs with available space AND you can join AND it's World Class II or higher then join it. Remember your old club’s name if you ever want to go back, just in case. If you attempt to join a club and you can't get in (maybe you're not at high enough a level) you are also kicked out of your current club for attempting to leave (for some reason), leaving you club-less. My favorite clubs were Polacy2019 (currently World Class I), pour tous (World Class I), and A.Y.M.K.N. TEAM (World Class I).
4. Betting: The general rule of thumb I found was to bet when you have a minimum of 10-20 million, which I agree with. But you can wait, collecting as many coins as you can, to start betting when you have more. The tip I read (and stuck with) was to follow the 1% bet rule: bet 1% of your current chips or even lower (like half of that).
5. Games: Everyone has a different favorite game. Some games are passive (can do Hold for Autospin and not babysit the game) while others you need to be engaged with*. Passive games: God of Sky, Steam City, Neptune's Mistress. *Note: User DilutedDante below stated all games are passive; for the games I saw that wanted my input (choose numbered cards for spin the wheel, etc.) I didn't wait long enough to see if the game would perform the action for me. Recommended games from other users here on Reddit: Wheel of Wins, God of Sky (one of my favorites), Speedy 777 Spins, Retro 81 (one of my favorites), Fortunes Jackpots (never played), and Jackpot Mania (never played). Of course, more games are unlocked the higher the level you reach. I recommend that if you are under 30 million to play God of Sky or Speedy 777 (which didn’t work too well for me, but others like it when trying to gain coins). Remember to do minimum betting or 1% or lower betting. Occasionally I would switch games and play Retro 81 or Wheel of Wins. Do this until you reach level 38 and unlocked Steam City and level 40 to unlock Neptune’s Mistress. I almost exclusively played these two, passively, to reach level 100. My method was betting 100K or 125K (if I had a minimum of 40-50 million). I didn’t feel secure enough to bet 250K or higher until I had a minimum of 100 million because otherwise I would run out of coins too quickly. I rarely bet higher than 500K. I think it took 2 hours or so, minimum betting, to level up each time. So that’s why it took me a week to do this and reach level 100. I found Steam City to be the best game overall as another user did. Sometimes, even at lowest betting and even with 100+ million coins and leaving it to play on its own, I would lose all coins. But that’s OK - just collect coins again and play again. It’s all luck. Another time I started with 15 million and it jumped to 125 or so million in a short amount of time with 100K betting playing Neptune’s Mistress.
6. I don’t recommend Daisy’s Challenges (far bottom right of main screen). The games to be played either rarely had wins for me or the minimum bet required to unlock a box was higher than I was comfortable doing. See user DilutedDante's comment below for benefit of doing Daisy's Challenges.

If anyone has any other tips or corrections on what I've said (I've read other users got into Master clubs, but they all seemed to be for very high level players?) please share! This is just my conservative and mostly passive playing guide based on how the experience was for me. Some users do recommend Daisy's Challenges or betting higher playing the 2nd tiemiddle High Limit slot machine and had better luck with those than I did.
I gathered many other tips from various users from the Swagbucks Reddit thread not mentioned here. If anyone wants me to include some of them I can.
See below for user Kpheark1's additional tips.

Hey, dudes, I've gotten help from this subreddit many times, so I figured it was time to pay back some of that good will. I just completed the Billionaire Casino to Level 160 offer in about 8 days with no purchase, and I bet most of y'all are like me, in that:
- You want to get this done as fast as possible.
- You are mystified by the janky systems of Billionaire Casino.
First off, it's about knowing which slots pay better than others, and how much time it'll take for each to become profitable. That said, here's what I did, with some notes to help.
1) When you're starting out, bet no more than 5% of your chips on a single pull. 75% of getting "good" at BC is overcoming the gambler's fallacy: you might think you can predict the slots, but you are dead wrong, and you will end up a virtual penniless pauper.
2) If you get above 1,000,000 chips, only bet 1% at most. The only times to go back to 5% are if you're either below 1 million again, or if you have a 2X experience boost, which is fairly invaluable.
3) Join a league as fast as possible, and have absolutely no loyalty. You are Benedict Arnold to the nth power. As soon as you see a better league, jump on it. Overnight, you should get a ridiculous amount of chips from shared jackpot and challenge prizes.
4) Recognize that most of the slots will drain you dry without giving much in return. From what I've seen, here are the ones worth playing:

• Blaster Cats vs. Aliens - pays out pretty well, so I played this one almost exclusively until hitting level 90 or so.
• Sky God - less reliable than BCvA, but when it pays out, it pays the hell out. If you've got a sudden influx of chips, try this for a bit. If you start losing, retreat to the safe harbor of BCvA.
• Camelot Cash - even less reliable than Sky God, but pays out ridiculous dividends. On a bet of 10 million, I walked away with 8 billion. Make sure you have enough to wait this one out, because endurance will be key to reaching a really big win.
• Any Huge Link game - these are risky, because they're probably the least reliable out of any of these, but, as you've probably guessed, they pay out a ton. The trick with these, and any, is not to be "lucky," but to be smart with your betting and only go in when you can afford to lose a lot while you wait for the ginormous payout.
• Buffalo Rush - the best one, hands down. If you get a lot of chips (think at least a million) head straight here. The payouts are high, frequent, and on a ridiculous 1024 paylines.
• Huuuge Bucks - another ridiculous payout with low reliability, though the kicker is you need to be a high level to play this one. I played while it was free for some kind of event. Locked slots go through that every so often.

5) Set Autoplay to run with the minimum bet on Buffalo Rush overnight. You might end up bankrupt, you might get a ton, or, most likely, you'll wake up around where you started but with significantly more XP.
6) Don't be afraid to lose it all. We're conditioned to hate losing, obviously, but, surprisingly, the game gives you a lot of chips a lot of the time. Every 15 minutes, you'll get a respectable sum, actually. Make sure to check the Billy Bonus (every 15 minutes), the shop bonus (every 8 hours or so), the lottery free tickets (also 8 hours, I think), and your Billionaire League bonuses.
7) Make friends, not because it's good for the soul or anything, but because the more friends you have, the bigger a bonus you get at the start of every day.
8) Meditate in order to calm the murderous rage you'll feel when you see Billy, the app's mascot.
Good luck, my dudes. I'll try to answer any questions y'all might have, so feel free to ask here or PM me if you're shy.

Hello guys, in this post I show you how to get to Level 150 in Billionaire or Huuuge Casino in 1 or 2 Days, because a lot of people struggle to get there.
So first of all I'm using the GoCases App where you can open Cases for CSGO Skins with earned Coins from playing games through Tapjoy and Fyber.
You'll be able to open a Knife Case with minimum 50$ Knife to 1000$.
So basically a Knife Case costs 15.000 Coins in the GoCases App.
If we complete both Casino Missions we got a total of 10k. The 2 Apps are very similar so this Guide will work for both.
1. After you installed the Casino game, you wanna start with low bets (always play Huuge Diamond Wins Slot!)
2. You want to get to Level 65 with like 200 Million Chips. At that Level you unlocked the Singapure Roulette which will be the Key to level up.
3. If you have 200.000.000 Chips and Level 65, you download an Auto Clicker App from the Play Store and start it. You choose the "multiple clicks" option and set the time between the clicks to 1 second.
4. You open one of the Casino Apps and go to Roulette, hold on to the Singapure Roulette and create a private session.
5. Bet 5 Million on Red and 5 Million on Black and click ready.
6. You click on the green plus at the Auto Clicker overlay twice, so you have 2 circles.
7. One circle is placed at "Bet again" and the second one on "Ready".
8. Now press the play button at the overlay, and just let it do it's thing.
The autoclicker will now automatically set new bets and press ready for you, this will give you with every round the XP worth of a 10 Million use and you will get the same amount back everytime except you hit green but thats a 1/19 chance.
IMPORTANT sometimes you have to press away some tabs otherwise you will be kicked because the autoclicker cant place any bets.
EXTRA TIPP! Join a Platin Club to get big rewards, everytime someone from your club hits a jackpot you'll get a good amount! To find a Platin Club just set at the Club Search the filters to 55-100 players, anybody can join and available for me. The Icon will have a Platin Ring!
Thanks for reading the full Guide!
I would be thankful if you would use my promotion code "vNgbLnnw" as a thank you, you also get 20 Coins in the GoCases App.

Proof:
https://preview.redd.it/xb9iqs5zlob51.png?width=1416&format=png&auto=webp&s=c952b5e5d5a6e582de865619558eac4c29410008
3 days ago, Revenue Universe had their double campaign and Huuuge Casino worth jumped from 3000 to 6000. It may have been higher on other sites or wall, but this was the first time I saw it this high. I actually failed this offer a month back on IOS for 5200 because I ran out of chips at around level 49 and just decided to quit. I decided to bite the bullet on this one, despite my failure, and decided to retry it (this time on Android). To my surprise, 3 days later, I was able to reach level 200. I have also included tips at the bottom of page for anyone who just want to know stuff like how to not run out of chips, when to use your lottery tickets, how much to bet, etc.
IMPORTANT EDIT: This is unconfirmed because I haven't checked on it but according to a few users, Huuuge Casino and other similar casino games have a small safeguard secret prize before level 50 that grants you chips during some level ups when you are under 20 million so it is almost impossible to lose all your chips. That way, you can max bet all the way to level 50 and if you are lucky, you may end up with a few hundred million of chips by then (again I haven't confirmed this yet, but I'm currently doing the Billionaire Casino offer (which is literally a carbon copy of Huuge Casino and vice versa in terms of slot machine, layout, etc) and this seems to be a thing. In terms of the hundred of millions of chips part, that is all dependent on Jackpot luck so take that part with a grain of salt).

Some stats

Time it took me	62 hours. If you did the simple math, that means of the 3 days I used to finish this offer. my android phone was on most of the time. The only time my phone wasn't on was during the last few hours when I was asleep because it turned off while I was spinning on Huuuge Diamond since I didn't want the offer to credit in the middle of the night. However, there is a catch. I used an auto clicker and bought the chips necessary to complete the offer. My phone didn't get all that hot during the 62 hours it was on, but just in case, if you are going to be like me and keep a phone on for 62 hours straight, be sure the phone is lying on something cool like a fan so the phone doesn't overheat.
Other apps used	Yes, I used an auto clicker. Otherwise, it would've taken a lot longer, more attention, and mind-numbingly frustrating. More info about that down below. For the autoclicker, I just downloaded the one that was the first result off of the play store. It was very simple too use.
Amount of chips used	Overall, I had about maybe 1.5-1.6 billion chips in total and used about 1-1.1 billion chips to get to level 200. I don't know if I was lucky or not, so this number can be lower or higher depending on luck but if you buy the 6.99 or 9.99 chip pack, there won't be much of a problem.
How much money spent	I spent on the 9.99 beginners pack that gave 1.3 billion chips, making for a 50 dollar profit. According to other posts I've seen, there seems to be a 6.99 pack you can get once you hit level 100 which should be enough chips to get to 200, but I never received the deal for some reason and I didn't seem to be the only one. Was it worth it? If you are impatient like me, using 10 dollars instead of spending days grinding out 1 billion chips sounds worth it in my book. However, for those who do not want to spend money, this offer can still be easily completed without spending money. Just be prepared to grind out a little over a billion chips.

​

My Level Breakdown

Here's a breakdown of what I did, but if you've read other posts regarding Huuuge Casino, this is mainly going to be repeat information.
Level 1-50 (Or when you have 100-125 million chips): Huuuge Diamond slot.
EDIT: This section maybe obsolete if the secret prize is a confirmed feature. If that is the case, just max bet to level 50, but the amount of chips you will receive will vary. If you want to stay safe, then just 10k bet. In exchange for time, you'll have a more stable end outcome.
This is where I spent my time for the first 50 levels. As to the reason why, on Huuuge Diamond, you can auto spin indefinitely. Nothing will stop the autospin, not even the level up notifications or the charm packs they give you every stupid milestone level up. I realized this when I forgot to check my phone after 6 hours and it was still going at it, so I left it over night and in the morning, it was still spinning. I would say it took me 30 hours or so to get to level 50 (just my estimate since I wasn't really diligently timing everything)
To the people who already finished this offer, they may be wondering "why 50 and not 65? 65 is when the Singapore Roulette opens up." The answer to that was because when I hit level 50, I had about 143 million chips (how I got this much will be explained in the tips, but it's honestly really simple. I never went over a 10k bid) and xp from slots is extremely slow. That's why once you hit maybe 125 million chips or so, it is good to switch to the Melbourne Roulette. By the way, SAVE YOUR TICKETS UNTIL YOU REACH LEVEL 100. According to another post I read, the rewards from the lottery is increased once you hit level 100 so it's best to save your lottery tickets until then.
Level 50-65: Melbourne roulette. Go to the roulette menu and hold down on the Melbourne roulette to start a private room. Bet half on red and half on black. That way, you will only lose if it hits the only 2 greens on the roulette. The max bid here is 1 million, so with over 100 million chips, you shouldn't be hurting for chips. This part, unlike the slots, should go by like it's nothing (I don't remember how long, but probably 1-3 hours). This was also around the time I started using the auto clicker because it will become tedious to tap on re-bet and ready every 5 seconds. With the autoclicker, for these 15 or so levels, you don't have to pay ANY attention if you don't want to. But once you reach level 65, it's time to move onto the final step.
Level 65-200: Singapore roulette. Around this time, I lost maybe 10 million chips from 50-65, so I was down to 133-134 million. Over here, max bet is 10 million, so put 5 million on red and 5 million on black. This was enough to get me to level 120 surprisingly, but at level 100, I started spinning in the lottery so I received more chips there and a 24 hour 2x experience bonus so that should also be taken into account (I also had a small unlucky streak where it green 2 times in a row a couple of times within 7 or spins so that was frustrating...). At level 120, I spent 9.99 to buy a pack that had 1.3 billion chips in. For those who do not want to spend money, this is where the grind begins for 1 billion chips.
Earlier on in these levels, it will be easier to level up and it will take longer to level up as you go higher, but honestly, it isn't that bad until it level 190. I don't know if it was just me, but level 190 to 200 felt waaaaay longer than level 180-190. For those of you curious, from level 199 to level 200, it took around 22-25 minute. In terms of leftover chips, I had 680 million left.

Tips

Join a good club! For those of you who don't want to spend money and for those who do, this is one of the most important rules as you can get a lot of free chips easily from your club members jackpots. I was able to get maybe 60 million or more just from collecting off the club wall because my club was fairly active. While searching for a club, filter your search options to Club level 20, anyone can join, and club members between 90-100. Even if there is only 10-15 members active in the club out of 100, that is still a good club to be a part in.
Do not use your tickets until you reach level 100. Your winnings from lottery will increase once you hit level 100. After using your tickets, you will most likely get a 2x exp bonus as one of your rewards. Use this time well (From level 100-200, I got 3 2x exp bonuses. With all the lottery tickets accumulated up till this point, you\re bound to get at least 1).
Probably obvious, but do not bet more than 10k on Huuuge Diamond. I can not stress this enough. The reason why I lost all my chips the first time I did this offer was because I was cocky and kept winning big with 50-100k bids, but that soon went down the gutter the higher level I got. Bet low, win high.
My slot machine of choice was Huuuge Diamond, but I think, honestly, any machine with a 10k bid can work, but I am not sure on this. I think this is also a good one to grind chips. I think the max jackpot, if you don't get the main jackpot on the top of the screen, is 1.6 million with a 10k bid, so it is still respectable. If anyone else knows of a better machine to grind on, please let us all know.
This website https://gamehunters.club/huuuge-casino/share-links gives you free chips if redeemed on the device you are playing Huuuge Casino on. I honestly did not need to use this site as the chips I bought were enough and the site lags my already super slow phone so it was a hassle to click on the reward, open the app to claim, and switch back.
I may have forgotten to add some things, so if anything comes up, I'll be sure to update. This was meant to give people a sort of guideline to an offer that I have seen given some people frustration (me included because this is the second time I did it, first time being unsuccessful). Once I hit 200, I was instantly credited with no pending. For those willing to spend for the $6.99 or $9.99 pack, this offer can be completed between 60-70 hours, give or take. For those who do not want to spend money, I would say to double the expected time, but finishing in 2 weeks is still doable. Good luck everyone and I hope this guide lightens a bit off your shoulders.
P.S. Sorry for the long guide. I talk a lot lol

I did this offer when Revu offered x2 SB so it was 5200 SB. This isn't a tutorial or guide, it's just what I did and it happened to work. Since it's gambling, there's a lot of luck/chance involved so your mileage will probably vary.
Before I did it, I read all the posts I could. Some people said bet low, some said bet max amounts. I decided to increase my bets as I went.
I joined a club. People say join a level 20 club. That't fine if one is available. I just joined a club that had a lot of members. Don't know what level it was when I joined.
I used one of those free chip sites. Don't know if one is better than another. I used https://www.peoplesgamezgiftexchange.com/huuuge-casino-free-chips/gifts.
I installed the game shortly after midnight. You only have 20 days to do it so I wanted to use as much of the day as possible. After the tutorial finished, I chose huuge diamonds as my game. Poeple have posted about specific games being the best earners. Since there's no way of knowing if those games work for everyone or if it was just lucky for the posters, I decided to go with huuge diamonds because some people have posted about doing well with that game. I chose 10,000 as my bet and started the auto spin. Went to bed.
The next morning I woke to level 29 and 31 million chips. Since it was earning well I decided to just let it run. I wanted to let it run overnight again but I had charger problems and stopped the game to charge overnight. Resumed game the next morning and continued betting 10,000.
Two days in, shortly after midnight I was level 40 - 56 million chip. Didn't write down totals at day three, but sometime during day three I increased my bet to 25,000.
Day 4 after midnight level 59 - 92 million. Continued betting 25,000.
Day 5 after midnight level 72 - 100 million. After waking up increased bet to 50,000.
Day 6 after midnight level 85 - 164 million. Sometime during the day I increased my bet to 75,000. Later increased it again to 100,000.
Day 7 after midnight level 100 - 584 million. Betting 100,000. Increased bet to 150,000. Increased bet again to 250,000.
Someone posted about not doing the lottery until you reach level 100. Couldn't find the post so I'm not sure why, but I figured why not try it. The lottery has a couple of wins where you get x2 the experience for either 24 hours or a certain amount of minutes. I don't remember how many lottery spins I had at level 100, but I think it was in the 30's. I used all my lottery tickets and got various amounts of chips, but no x2 experience.
Day 8 after midnight level 121 - 570 million. Continued betting 250,000. During the day I received 600,000,000 chips. I just clicked "collect" on the screen. I assume I won a jackpot, but not sure. I now had 1,100,000,000 chips. I was earning chips and leveling up, so I decided to continue betting 250,000.
Day 9 after midnight level 143 - 1 billion. Used nearly 50 lottery tickets, no x2 exp. Continued betting 250,000 before going to bed. Overnight my chips dropped to 550,000,000. Continued betting 250,000, but kept a closer eye on game. Dropped to 400,000,000 chips, lowered bet to 150,000. Dropped to 350,000,000, lowered bet to 100,000. Increased to 700,000,000 increased bet to 150,000.
Day 10 after midnight level 158 - 932 million. Betting 150,000. Woke up to 2 billion chips, increased bet to 250,000. At mid-day used 26 lottery tickets. Increased bet to 500,000.
Day 11 after midnight level 175 - 1,800,000,000. Lowered bet to 150,000 while sleeping. Woke up, increased bet to 250,000.
Day 12 after midnight level 184 - 1,400,000,000. Betting 250,000. Around 7:00 PM I reached level 190. Decided to try my luck at roulette. Set up a private room in Singapore Roulette. Installed and ran an autoclicker. Bet 5 mil red, 5 mil black and started autoclicker. Let it play to see what happened. I reached level 199 at 11:00 PM. I already had my daily goal for that day so I stopped playing and waited till after midnight.
Day 13. Resumed playing Singapore Roulette right after midnight. Betting 5 mil red, 5 mil black. Reached level 200 within 30 minutes. Received 5200 SB within 1 minute of completion.
I tried to change the amount I bet around noon, but I didn't always remember to. Judging from the posts here, there are people that are in a big hurry to finish any game offer they do to the point of paying quite a bit of money for it. I hope it's google rewards money they're using, but it doesn't sound like it always is. I was in no hurry to finish, and I would have gladly taken the full twenty days to finish it. I didn't pay a penny to complete this game. Some people will disagree and say it's too much of a grind to do for twenty days. Since the auto spin and the autoclicker did all the work, it didn't require much attention from me and therefore I don't consider it a grind.
If I had to do it over again, I would have done roulette way earlier than level 190. I wanted to see if I could finish it by just auto spinning slot games. It was taking quite a while to advance in the later levels and I got nervous that the remaining 7 days might not be enough time for the last 10 levels.
DarkKillingEdge recently posted a guide for this game. https://redd.it/htoqun
If you're thinking of doing this offer, I advice you to read both of our posts, and all the rest, but follow his. Mine worked, but it was meant to be easy to do, not fast.
These were my final stats:
Slots - only slots I played was huuuge diamonds Total winnings 69,340,075,610 Biggest win 381,338,423 Total spins 564,168 Spins won 56,841
Roulette - only played Singapore roulette Total winnings 8,304,400,000 Biggest win 24,000,00 Round played 898 Rounds won 4

8/26 Update - Added Star Slots information
This is the "Casino Games" section of my Swagbuck Games post: To All The Swagbuck Games I've Ever Played.
If you are interested in other types of Swagbuck games, refer to the previous post for links to additional game groups. I had to break the original game post up because the word count was too long to add any more content. This post will be updated as I complete new Casino offers. I will update the first line of this post with a quick summary of changes when new information is posted.
The following is a list of the games discussed in this post. For those who are new to Discover offers or feel less comfortable with mobile games, in the following list I have marked easier offers with "(Beginner)". Items marked with "(Beginner+)" are on the easier side but with a bit more complexity. This is a standard marking I use across all my lists.
Here is a brief list of the games:

• Pop Slots (Beginner)
• Huuuge Casino
• Billionaire Casino
• Club Vegas
• Star Slots

Other items to note:

• I am an Android user. The offers below may only be available for Androids. I will note when they are for Android only when I see that in the disclaimer.
• I have not spent any money to complete any of the following games.
• I always recommend having accounts with multiple sites that have offer walls to compare offers. Here are some other sites that I have accounts at and have also done offers at:
  • GG2U (most recommended) (Ref | NonRef)
  • RewardXP (Ref | NonRef)
    • Full Disclosure: Have not used this site yet, but received a good recommendation from someone who has been using these sites for longer then me, saying they have some of the highest payouts they've seen. The company also reached out to me to inform me that they had a higher offer for War and Magic then I had commented in my guide. They have good offers, a good payout rate, PayPal and Amazon options, and low cashout minimum.

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Pop Slots ($25)

This was by far and away the easiest Swagbucks game I've played to date. I completed it in under 2 hours. I wrote up a tutorial here.
Time to Complete: Level 28 offer took me less then two hours and I wasn't completely passive. Level 35 offer (which I helped my sister-in-law with on a non-Swagbucks site) took me 2 days, but we just had the phone sitting on the counter while we did other stuff. Needed a restock on tokens the next day for the level 35 offer.
Credit Experience: Credited immediately without issue.
Biggest Con: None
Overall Recommendation: Would definitely recommend. I've seen the offer amount go from $25 down to $5 back up to $15, so I would say hold out for atleast a $10 offer.
Guide for Reference: [Guide] Pop Slots

Huuuge Casino ($20)

Another slots game like Pop Slots, but they also have some non-slot games like poker and roulette.
First off, I did not complete this offer. This was one of the first offers I did on Swagbucks and I didn't know how to really gauge if offers were doable or not, that offers have different completion times, etc. Unfortunately the offer I selected was a level 200 in 10 days offer. By day 6 I was at level 164 and low on chips. With how much I was having to bet on slots or roulette with each level, I knew there wasn't any hope without spending money at that point.
Fastforward a couple weeks later and I learned a tip that would have probably saved me: you can create a private roulette table! This significantly reduces the time each turn at roulette takes! In hopes of helping others looking at this offer, I wrote up some game tips that are probably good to look over before starting Huuuge. If I had known all these before I started, I would have definitely made it to level 200.
Today there was a post on the forum from someone who says they reached level 200 in 6 days after buying a $6.99 chip pack with 800+ million chips. They also commented that the roulette grind was rough, taking 15+ minutes per level. Otherwise their tips were the same as what I had posted.
Time to Complete: Did not reach level 200, but without making any purchases I would say don't take an offer that was less then two weeks. You can run the slots passively, but the non-slot games need interaction for each round/hand.
Credit Experience: n/a
Overall Recommendation: I would not recommend any level 200 offer unless it was not time constrained or if you were planning on making a purchase. There is usually also level 100 offer for less money (~$8). Give that an attempt on a double SB day.
Guide for Reference: [Guide] Huuuge Casino and Billionaire Casino

Billionaire Casino ($20)

8/26 Update: Swagbucks increased this offer to $50 for level 160 in 14 days. This is up from $20 level 150 offer that they had been running on and off for a while. It had jumped up to $40 for about a month before it jumped to $50.
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I honestly hate the Huuuge branded slot casinos. They just aren't fun to play and you need to be semi-active for the roulette grind. This offer was to get to level 150 in 14 days, so the grind was much less then the level 200 Huuuge Casino offer. Yuck! I had some good luck getting 2 Charm event packs completed for big chip wins so I was able to complete in 3 days, grinding roulette when I had the time. The offer went pending after maybe 10 minutes. (Note: the Charm event was a limited time event)
If you're planning on doing Billionaire Casino, my tips write-up for Huuuge Casino also applies as they are basically the same exact game: here.
Time to Complete: 3 days, but lucked out with some event chip wins
Credit Experience: Pended immediately
Biggest Con: The grind! It can kill your spirit and your soul, especially if you're unlucky with wins, events, or the lottery wheel.
Recommendation: I would only recommended level 150 offers or lower. Pended without any issues, so expecting to credit in the next couple days.
Guide for Reference: [Guide] Huuuge Casino and Billionaire Casino

Club Vegas ($12.50)

Another casino offer. There are times in the middle of these casino offers that I just wonder why I put myself through this. I was at this point with about 15 levels to go and only 5 million chips when I happened to stumble across my own personal gold mine! It was the slot Spartan Gold. I am usually one of the unluckiest people when it comes to casino games, but I would hit huge win after win after win with that slot, including two Grand jackpots, one valuing over 400 million! I honestly think that slot might be bugged.
Remember to collect free coins each day at a site like this one. When first starting the game, click offers starting with the most recent and going backwards until they stop crediting.
Time to Complete: About 3 days to reach level 70
Credit Experience: Pended immediately
Biggest Con: You can't put the game on auto. There are "spin" or "collect" screens that will just wait there forever for you. I couldn't find any slots that didn't have this. So you need to be able to check on the game every couple minutes.
Recommendation: The time limit was 30 days, so even without the crazy luck I had, I wasn't concerned about eventually getting there. I'm just bored out of my mind of casinos so its hard for me to recommend. If you like casino games and can babysit the game, then yes I would recommend.
Guide for Reference: No guide found....might need to write something up for this one...

Star Slots ($8.50)

I finished this offer a couple weeks ago, but wasn't able to write up a report on it until now so I'm trying to refresh my memory on this one. Thankfully I had a helpful commentor on the main thread who I'm referencing to jog my memory.
This is another casino by the Huuuge brand casino slots. It has similarities to Huuuge Casino and Billionaire Casino with two notable differences: (1) how clubs work and (2) no roulette table. Clubs do not have daily challenges (although they have a note saying they're coming). Instead clubs provide benefit by percentage increase of free chips as well as some free chips when members hit jackpots.
Remember to collect free coins each day at a site like this one. When first starting the game, click offers starting with the most recent and going backwards until they stop crediting.
Time to Complete: About 5 days to reach level 80. I wasn't focusing on it much over those 5 days so its possible it could have been doable in 4. A commentor on my main post added this about the recent level 110 offer on Swagbucks.

The 110 offer in 14 is definitely doable, but might be a bit tough without good luck. I got to 80 in about 6 days.

Credit Experience: N/A as I completed the offer on a non-Swagbucks site
Biggest Con: The slot machine minimum bet amount continues to increase as you level. Between that and the relative shortage of free chips, the likelihood of running out of chips increases. This just means you have to wait to replenish, but it does slow things down a bit. One hint is that the minimum bet amount only increases once you leave a slot and then start another one.
Recommendation: The level 80 one is easy to hit if you have 10-14 days. Be a little more cautious about a level 110 14 day offer. If you have 20+ days, I'd gauge that you'd have no problems either.
Guide for Reference: No guide found

Overview

Edit: Just to make things clear: There's an offer on AdGate to reach a certain level in this game. Your earnings aren't determined by your luck with gambling.
 
As the name implies, this is a slots game. That means it is entirely luck based, and every user is going to have a different experience with it. I ran out of chips at level 53, the next day I struggled to gain chips, and the following day I woke up to 450m chips which I then quickly tripped that to 1.2B chips. This barely got me to level 100 before suddenly winning another 3B chips on my last auto-spin.
This game frequently gives out chips, and there isn't a specified deadline. Considering this game practically plays itself, it's definitely worth doing.
Edit 2: I took a look at Huuuge Casino Slots as mentioned by u/jraspberry and it seems to be almost exactly the same. There are just a couple differences with names. This offer is $17.66 with 2x Adgate on Swagbucks.
 
^{Just in case someone doesn't know the common conversions - K stands for thousand. M stands for million. B stands for billion. So, 500m would be 500 million or 500,000,000.}
 

Offer Name	Billionaire Casino™ Free Slots 777 & Slot Machines
Offer Wall	AdGate Media
Device Used	I use Android. I do not know if it works on iPhones.
Amount	I got $18.40 from Swagbucks on their 2x SB day. Today 2/7/20 is a 2x AdGate day.
Time Limit	None mentioned.
Time Spent	I got to level 53 the first day before running out of chips. I completed the game in under 3 days. Total hands on time was maybe an hour tops. It mostly plays itself.

 

How to play & Tips

As the name implies, this game is about slots. (Note: They do have other games, but I didn't touch those.) Thankfully, they also include an auto spin feature, so you don't have to give it much attention. Just long hold the spin button until it starts auto spinning, and away you go. You may need to play the first game a couple times before this unlocks.
The goal of the game is to get to level 100. You gain XP simply by playing the game and spending chips. Spending more chips will give you more exp, and it seems to go up at a linear rate. I chose to bet 1% or less of my balance to prevent any heavy losses because my luck generally sucks. While it does feel slower, the game is playing itself, and I wasn't in a rush.
As you level up, you will gain access to more boards. If you are having a bad streak with one game, you can just swap to a different one. Make sure to use up any free spins before swapping games though, as they are forfeited when you leave. There is also a "Basic Pass" event you can do and you'll get a good amount of chips for hitting the goals for certain games. You can find this on the home page or in the individual games. If you're going to play a game anyways, might as well get the bonus. (Note: I played for less than 3 days, so this event might change).
At certain levels, you will get a 2x XP bonus for 5 minutes after hitting that level. These are often in the reward box every 5-10 levels. However, it also seems to happen with every level up starting around level 80-85. Since it's timed, it may be worth upping your bet during this time period.
Every so often you'll get a mini game that pops up. Some will autocomplete, others give a higher bonus for doing yourself, and some just disappear. If you notice it, it might be worth doing manually.
You will definitely want to join a club. It gives you 1M chips just for joining, and you'll get all sorts of bonuses. You can do this by tapping the Billionaire League button on the bottom bar of the home page. There didn't seem to be any individual participation bonus for participating in the club events, so you can chose whether or not to do them.
 

Getting More Chips

There are a number of ways to get free chips in this game.

• You can get the Billy Bonus every 15 minutes. It is located on the bottom left hand corner of the home page. It doesn't give a lot, but it helps with the daily quest.
  
• You get one free spin of the lottery every 6 hours. You will also get tickets as you play, usually from leveling up. This is located on the bottom bar on the home page.
  
• You get a free Shop bonus every 8 hours. This is located on the bottom right of the shop page.
  
• You get a bonus for completing daily missions. You get 100k for each of the following: Spin 250 times. Hit a big win 3 times. Hit a free spins 3 times. Collect 3 Billy bonus. You also get an additional 500k for completing all of those.
  
• You can get club bonuses. After joining a club, click on the "Billionaire League" button located on the bottom bar of the home page. This will take you to your club page. From here, you want to click on the "Club Wall" Tab. You then need to tap each one of the green buttons showing you a chip amount. Make sure to check on this every 12 hours or less, as some of these will expire in 12 or 24 hours.
  
• At the start of each day, you will be given some chips. You get 1k chips per friend added (up to 25 friends). You will get 100 chips for every like you get (up to 100). You will get 1k chips per day streak. For example, on day 3 you will get 3k chips. You also get a spin of the roulette that will award up to 1.5M chips.
  
• You can get 500k chips for connecting to your Facebook account. This seemed like a lot at first since you only start off with 5M chips, but in the long run it didn't feel too necessary.
  

 

Should you spend real money?

Spending money would definitely speed up your completion time. It's by no means necessary, but even spending $1 or $2 would let you finish the game quickly. Just look for the popups where you earn 300-350% more. I frequently saw a $1 offer for 70M chips, and a $2 offer for 168M chips. You can pull these offers up by hitting the "News" button on the bottom bar of the home page.
That being said, considering the game practically plays itself and there's no time limit, I didn't feel a need to spend anything.
 

Other Features

This game has a number of additional features, which you don't necessarily need to participate in as they don't benefit you. I'm putting them here for completeness, but you can just skip over this section if you aren't interested.

• You can give drinks to users. I'm not entirely sure what this does, but I think it might send chips to others. You can buy the drinks for points. You can also give a free drink when a certain condition is met (it never stays up long enough for me to read it). When winning a jackpot, sometimes it'll let you send out a round of drinks to the other players. You only get 3 seconds to do this, so accept it quickly.
  
• You can like users every 60 minutes. This will help with their daily goal.
  
• You will get some diamonds. They seem to only be good for unlocking boards before getting to the required level and for giving out "drinks" to users.
  

 

General Tip:

When you click the offer on the offer wall, download the app right away. As soon as it's done downloading, open the app right away and let it run for a while (play the game, make an account, let it sit, whatever). Do not navigate away at any point during the process. Taking too long or messing around while the game is downloading/installing may cause problems with it crediting later.
 
 

Common Questions

Can I do this if I already completed it on another offer wall or played the game before on my own?

Generally, no. Almost all of these games state that it's for new users only.

What if I do it on another site?

No.

I don't see the offer! What do I do?

It's possible it simply isn't available for you. I'm from the USA, and many offers are not available outside the USA. If you are from the USA, try checking on the site I did the offer on or on a different site. Sometimes they're only on certain sites. It's also possible that the offer is no longer available.

I completed the task but I didn't get credit for it! What do I do?

First, wait 24 hours. Most of these games credit within a few minutes, but they may take up to a day sometimes.
Next, check to see if the offer has been completed through the offer wall. If it has not, you must contact the specific offerwall that you completed the task on. For example, if you do this task on Site-xyz through AdGate you have to contact AdGate. If the offer shows as completed but you did not get your points, then the points may have been held and you will need to contact the specific site.

This takes so long! Why would you waste your time for a couple bucks?!

I play these games in between other work or on the weekends. I don't do them instead of better paying work, but rather along side it in my down time or while I'm watching TV. Most of it is just waiting around for it to do its thing. I'm also a gamer, so I enjoy playing games.
 
 

Have any more tips? Let users know in the comments!

 
Looking for more ways to get paid to play games? Take a look here.
 
^{Is there a certain game you're interested in seeing a guide for? Let me know in the comments! Be sure to include the offer name, which offer wall it's on, what site you found it on, and approximately how many points it's worth.}