Kosmonaut Casino

Kosmonaut Casino
June 2023 bonus
200% up to 1 BTC + 100 Free Spins


Kosmonaut Casino Summary

Kosmonaut Casino’s space-age theme takes players on a journey through the cosmos to discover a gambling experience of otherworldly proportions. This casino has certainly made its mark in the universe with a stellar selection of over 2,400 casino games and incredible bonus offers. Kosmonaut supports 18 currencies including 6 cryptos with over 20 deposit methods and players can receive excellent bonuses on the first 3 deposits. Gear up for an unforgettable journey with Kosmonaut casino.

  • No Wager Free Spins
  • Daily Cashback
  • Bitcoin Slots Available
Accepted Currencies
Bitcoin Cash
Bonus Info
Bonus Total
200% up to 1 BTC + 100 Free Spins
1st Deposit Bonus
100% up to €250 or 0.25 BTC + 20 free spins
Free Spins
Bonus Code
Reload Bonuses
Mobile Friendly
Altcoins Accepted
Fiat Accepted
Live Casino
Dice Games
Pros & Cons
  • Excellent VIP program
  • Weekly reload bonuses
  • Expansive game selection
  • Higher than average wagering requirements
  • Vague withdrawal limits

Launched in 2020, Kosmonaut is still one of the newest casinos we’ve reviewed for our site. The online casino features an intergalactic theme with an astronaut cat as its mascot. This casino accepts 25 different payment methods, which include eight top cryptos with simple deposit and withdrawal methods. You’ll also find a huge assortment of regular casino bonuses, including no wager free spins and regular slot tournaments

Discover top online slots, live dealer games and more at Kosmonaut Casino.

In our casino reviews, we always aim to give you the cold, hard truths and be as transparent and honest with our readers as possible. We’ll look over all the casino’s bonus terms and conditions, game availability, speed of customer support, and more. 

Get ready because it’s time to blast off into our review of Kosmonaut Casino. 🚀

Bonuses and Promotions

Be sure to grab your welcome bonus when you register to play.

To kick things off, Kosmonaut Casino offers new players a handsome welcome bonus, but you’ll also find weekly free spins, cashback rewards, and more. We’ll take an in-depth look at all the terms and conditions of each so that you can understand each bonus’ true value.

Welcome Bonus

Get a Bitcoin bonus and free spins on your first three deposits at Kosmonaut.

New players at Kosmonaut Casino are welcomed with a generous welcome package valued at 200% up to 1 BTC + 100 Free Spins spread out over your first three deposits. This welcome bonus is also available in fiat currencies and other cryptocurrencies such as ETH, LTC, and more.

First Deposit Bonus – 100% up to 0.25 BTC + 20 Free Spins

◦ Bonus Code: KOSMO1

◦ Minimum deposit =  0.0010 BTC

◦ 50x wagering requirements

◦ Bonus expires in 3 days

◦ Spins valid on Fire Joker by Play’n GO, Elvis Frog in Vegas by BGaming, and Aztec Magic Deluxe by BGaming

Second Deposit Bonus – 50% up to 0.25 BTC + 30 Free Spins

◦ Bonus Code: KOSMO2

◦ Minimum deposit =  0.0010 BTC

◦ 50x wagering requirements

◦ Bonus expires in 3 days

◦ Spins valid on Gold Digger by iSoftBet, Elvis Frog in Vegas by BGaming, and Aztec Magic Deluxe by BGaming

Third Deposit Bonus – 50% up to 0.50 BTC + 50 Free spins

◦ Bonus Code: KOSMO3

◦ Minimum deposit =  0.0010 BTC

◦ 50x wagering requirements

◦ Bonus expires in 7 days

◦ Spins valid on Black Wolf by Booongo, Elvis Frog in Vegas by BGaming, and Aztec Magic Deluxe by BGaming

Weekend Reload Bonus

Get a 50% reload bonus every weekend.

Grab your 50% reload bonus up to 0.017 BTC every weekend at Kosmonaut Casino! This offer is good for both Saturday AND Sunday, making a total value of 0.034 BTCH. 

Use Bonus Code: JUST50 to activate your bonus. 

The minimum deposit is 0.0014 BTC, bonus funds expire in 3 days, and all bonus funds come with a 40x wagering requirement. 

Daily Crypto Cashback

Enjoy daily cashback bonuses.

Kosmonaut Casino is the gift that keeps on giving, as you can also expect to find daily cashback rewards of up to 21%! This bonus is only available to crypto players using BTC, BCH, ETH, LTC, ETH, DOG, USDT, BNB, and TRX tokens. 

There is no bonus code to activate your cashback rewards. 

You will need to have a net loss of at least 0.00049 BTC to be eligible for this bonus. The minimum cashback reward is 11% and increases based on total net losses. You will need to have a net loss of at least 0.12 BTC to receive the full 21% bonus. All cashback bonus rewards come with a 3x wagering requirement. 

No Wagering Free Spins Wednesdays

Use the bonus code and claim your no wager free spins every Wednesday!

If you’re looking for no wager free spins, Kosomnaut’s got you covered. Every Wednesday, players can receive up to 100 free spins with no wagering requirements. This is a casino bonus that is every player’s dream come true! 

Use Bonus Code: KOSMOWED to get your weekly free spins. 

The total amount of free spins you receive is dependent upon the amount you deposit that day. A deposit of 0.0010 BTC will receive 25 free spins, a deposit of 0.0020 BTC will receive 50 free spins, and a deposit of 0.0040 BTC will receive the total 100 free spins. 

Free Spins are available in Dig Dig Digger, Aloha King Elvis, and Book Of Cats online slots by Bgaming and must be used within three days. 

No Wagering Free Spins Fridays

Get even more free spins no wagering bonuses on Fridays.

Need even more free spins no wagering bonuses?! Well, you guessed it, Kosmonaut has those too. On Fridays, get ready to claim 200 no wager free spins to play the best online slots. 

Use Bonus Code: KOSMOFRI to receive your Friday free spins. 

Again, you will need to make a deposit to be eligible for this bonus. A deposit of 0.0020 BTC will receive 50 free spins, a deposit of 0.0040 BTC will receive 100 free spins, and a deposit of 0.0075 BTC will receive all 200 free spins. 

Free Spins are available in Elvis Frog Kosmonaut by BGaming or Book of Sun from Booongo.

VIP Program

Join the VIP program to get weekly cashback, free spins bonuses, and more.

Welcome aboard the VIP mission at Kosmonaut Casino. Here, you’ll find a 9-tier loyalty program that awards players with weekly cashback rewards, free spins, and more. You’ll need to collect Kosmocoins to move up a level. 

Players collect 1 Kosmocoin for every 0.0036 BTC wagered. All rewards, spins, etc. are valid for three days after issuance. It’s also important to note that wagering requirements and game availability vary with each level. Weekly rewards can be claimed every Monday.

Slot Tournaments

Participate in weekly/monthly slot tournaments.

Kosmonaut is also home to a number of regular slot tournaments, which they call “races.” Here, players will battle it out on the leaderboard by playing their favorite slots. Prizes vary upon each tournament and range from cash prizes to iPhones and even Macbooks. Check the tournament’s terms and conditions to learn more.

Available Games

Play the best online slots, crash games, provably fair games, and more.

Kosmonaut Casino hosts an expansive game catalog filled with top online slots and live dealer games from 40+ providers, including Endorphina, Microgaming, and NetEnt. You’ll also find plenty of the best blackjack tables, online roulette, dice games, and more. 

I took the time to play through several games available at Kosmonaut Casino to give you a better idea of all the great games they offer. 

Online Slots

  • Elvis Frog Kosmonaut by BGaming
You’ll find this original online slot only at Kosmonaut Casino.

I love seeing online casinos having exclusive and original games that you can’t find elsewhere, and that’s exactly what Elvis Frog Kosmonaut is. The casino and BGaming teamed up to bring one of the provider’s most beloved characters to an exclusive online slot that features blazing wheels, free spins, a hold and win bonus game, and jackpot prizes. Elvis Frog, himself, serves as the game’s wild symbol, and he’s still here to serenade you win you get a big win. 

Enjoy Elvis Frog serenading you while you play and win.

While this game doesn’t really offer anything different from the original Elvis Frog in Vegas online slot, it’s still refreshing to see the character in a new environment. If you like the original, you’ll love this game. Hold and win slots are still trending with many casino players, and this one offers plenty of good-sized wins. 

Live Casino

  • Immersive Roulette by Evolution
Enjoy the best live dealer games from Evolution.

You’ll find plenty of live dealer games and game shows to play at Kosmonaut’s live casino, including live blackjack, live poker, and multiple roulette variations. Immersive Roulette is really a live dealer game created to show off Evolution’s impressive video technology. The game is played like any other live roulette game where you can place your wager on red/black, odd/even, numbers, or whole sections of the board. The live dealer will spin the wheel, and if you wagered wear the ball lands, you’ll receive a payout.  

Take your chances on the roulette wheel in Immersive Roulette.

But as I said, this variation heavily focuses on immersing players into the game via the videography. So you’ll notice lots of camera angles that range from on top of the wheel to beside the live dealer and others. This is especially true when the ball stops on the wheel as the camera action suddenly moves into slow motion as you wait to watch the ball fall. Me, I find it distracting from the gameplay, but I can see where some players might enjoy it. 

Bitcoin Slots

  • The Myth by Mascot Gaming
The Myth is one of many top Bitcoin slot games at Kosmonaut.

Fans of Norse/Viking-themed games will enjoy The Myth online slot game. The game features a 5×3 grid and has an RPT of about 95%. This online slot also features a bonus game where players can win up to 25 free spins. But the big thing here is what the game has dubbed a “Risk’n’Buy” feature. This feature is available after every spin, even if there is no win. Should you accept, you’ll instantly be taken to one of the four free spins games for a chance at some of the game’s biggest wins. 

One of four free spins bonus games in The Myth.

There are four different bonus games in The Myth. The first is the Dragon Free Spins, where you get 10 spins one random reel will become a full reel wild on each spin, as well as any other reels where a wild lands. The second is the Vikings Free Spins, where you get only 5 free spins with wild symbols that convert any adjacent symbols to wilds. The third bonus game is the Skadi Free Spins, which kind of plays out like a hold and win game. And the last bonus game in The Myth is the Wolf Free Spins which comes with random wilds. Additional free spins can be won in all bonus games.

Crash Games

  • Aviator by Spribe
Aviator is one of the most popular BTC crash games.

While you won’t find many crash games at Kosmonaut, you will find one of the most popular. Spribe’s Aviator is one of the top crash games you’ll find at crypto casinos. Gameplay is simple. Just place your wager and hit cash out before the plane flies away. You’ll receive your wager plus multiplier upon completion. Crash games such as aviator are quite popular among crypto players as they are seen as one of the fastest ways to multiply your crypto

Jackpot Games

  • Absolootely Mad: Mega Moolah by Microgaming
Play progressive slots.

If you’re looking for huge progressive jackpots, you can never go wrong with a Mega Moolah Slot, and Absolootely Mad has a reputation for having one of the largest payouts in online slot history at $23.6 million back in 2021. In addition to a great theme centered around the infamous works of Lewis Caroll, the game also features cascading wins, a free spins bonus game, and a multiplier trail to increase your winnings up to 15x. While many enjoy playing Mega Moolah slots, it is important to note that they are notorious for their very low RTP at 92%. 

Mega Moolah slots are the most played progressive online slots.

Despite its low RTP, Absolutely Mad is a very fun online slot to play. The Mad Hatter character chuckles and makes comments throughout the game. So while this slot game doesn’t really offer anything new, it is still captivating players into its Wonderland world. To trigger the game’s progressive bonus wheel, you’ll need to collect a lot of gold coin wild symbols into your teapot. Once you have enough, the bonus wheel game will be triggered, where you will spin to win one guaranteed jackpot prize

Casual Games

  • Astro Legends: Lyra and Erion by Foxium
You’ll find this unique online slot at Kosmonaut Casino.

I’m not sure why Astro Legends is under Casual Games at Kosmonaut, but that’s where you’ll find it. This is a very unique online slot that is like nothing else I’ve ever seen. The game’s board almost forms a diamond, and all matches payout via cluster wins. This retro-themed slot also features multiplier wilds, respins, and a Lyra Spirit Bonus game that has to be seen to be believed. In it, you have a wolf that has three lives. You’ll try to get through all seven levels of the bonus game while collecting as many gems as possible without being hit by Erion. You’ll win a 20x multiplier if you get through every level. 

Choose the correct path for bigger wins.

I love everything about this game! The two characters battle each other through the game and interact with one another. The soundtrack is great, and I love the 80s retro style of the digital artwork here. There are no scatter symbols. Instead, you’ll need to collect 100 Stardust Bubbles to trigger the bonus game. It takes a while, as they appear at random, but once you do, it’s well worth it. Everything about this slot game made felt completely innovative and fresh. If you’re an online slot player looking for something new and/or totally different, I highly recommend checking this one out. 

Design, Experience, and Mobile Compatibility

Registration is fast and easy.

Overall, I’m left with a positive impression of Kosmonaut’s platform. In the top menu, you’ll find all the information you need on payment methods, casino bonuses, the VIP program, and slot tournaments. Games can be easily sorted by categories, providers, or you can use the search feature to find a game by name. And at the bottom of the site, you’ll find pages for Responsible Gaming, Bonus Terms and Conditions, and the FAQ. 

I also tested the casino site on my mobile device and found that all features are fully optimized for both iOS and Android devices. 

Customer Service and Support

You’ll find multiple options for support at Kosmonaut Casino.

Should you have any issues or questions while playing at Kosmonaut, you can contact customer support via the following methods. 

Contact form


Live chat

My biggest complaint about Kosmonaut actually involves their live chat feature. Every time you change a page you are on, the chat pops up and makes a “bubble sound,” asking, “Welcome back, let us know if you have any questions.” It was actually rather annoying. I understand that they are letting me know that live chat is available, but let me walk through your site in peace, please. 

However, I did test out the live chat support and found them very helpful and knowledgeable. The FAQ does not have much information on it, so most users will probably not find it very helpful and will need to resort to the chat support.  

Deposits, Withdrawals, and Security

All deposits and withdrawals at Kosmonaut are instant for crypto players, and there are no withdrawal fees. You can use any of the following cryptocurrencies at this online casino. 

CryptoMin DepositMin Withdrawal
Bitcoin0.00006 BTC0.0002 BTC
Ethereum0.01 ETH0.01 ETH
Litecoin0.01 LTC0.01 LTC
Bitcoin Cash0.00006 BCH0.0002 BCH
Tether0.0001 USDT0.0001 USDT
Dogecoin0.01 DOG0.01 DOG
Binance0.01 BNB0.01 BNB
Tron10 TRX10 TRX

NOTE: When it comes to withdrawal limits, the site is rather vague. I found the following in the casino’s terms and conditions, “The maximum amount for withdrawal depends on the payment method you use. If the requested amount exceeds the limit of a particular payment system, the amount will be withdrawn in installments.”

Kosmonaut Casino’s site states that they use the best and most innovative technologies protected by industry-standard encryption technology. This means that all your personal data and any activity you make on the site will be kept completely private.


Overall, I had a very enjoyable experience at Kosmonaut. In fact, this might go to the top of my list of one of my preferred crypto casinos. Let me count the ways. First, they have a great game collection that they are working ever to expand and broaden. Second, it’s one of the only crypto casinos where you can find a no wager free spins bonus; and it’s not just a one-time event. You get them every week! And finally, I love the low deposit and withdrawal limits, as that makes it much easier for me to collect my winnings. 

Limited info to be found on the site’s FAQ page.

What would I change? I do wish the casino site would not be vague about maximum withdrawal limits. While such things usually only affect high rollers, it’s still good information to know. Also, in my opinion, the terms and conditions of the welcome bonus are not the best for most players. The wagering requirements are far too high (50x) to realistically meet them in the time frame given (3 days). And my other complaint would be that their team needs to put some love into their FAQ page. Just add more information. But these are all relatively minor things in the grander scheme of things. 

In the end, I highly recommend checking out Kosmonaut Casino. It’s one of the best casino sites crypto players will find. Thanks for the experience Kosmonaut, you’ve certainly made a casino cosmonaut out of me!


Is Kosmonaut legit?

Yes, Kosmonaut is a legally licensed casino that is owned and operated by Dama N.V. that is incorporated under the laws of Curacao with company registration number 152125 and having its registered address at Scharlooweg 39, Willemstad, Curaçao. Dama N.V. is operating under E-gaming license No. 8048/JAZ2020-13 issued by Antillephone N.V. authorized by the government of Curacao. Friolion Ltd. is a company incorporated under the laws of Cyprus with company registration number ΗΕ 419102 and having its registered address at Leandrou, 12A 3086, Limassol, Сyprus. Friolion Ltd. is a facilitating company within the DAMA group. DAMA group is operating under E-gaming licenses of Curacao(8048/JAZ2020-13), Estonia (HKL000255).

What crypto can I use at Kosmonaut Casino?

Currently, players can use all of the following cryptocurrency at Kosmonaut: BTC, BCH, LTC, ETH, USDT, DOGE, TRX, and BNB.

Can I get a free spins bonus at Kosmonaut Casino?

Yes, players can receive a total of up to 300 no wager free spins every week when they make a deposit at Kosmonaut Casino. New players can also enjoy 100 free spins as part of their welcome bonus.