Cosmic Bonuses and Realod-offers
$1,500 Bonuses and 200 Free Spins
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Players from United States accepted
Players from United States not accepted
Rated 8.50 of 10


  • Fast Registration
  • Licensed Operator
  • Generous Bonuses & Rewards
  • Quick Payments
  • No Mega Jackpot Games

Another day, another space themed casino. Lately a lot of new casinos have taken players to another universe – and CosmicSlot wants to do the same. We wanted to find out if this casino is worth the trip or will it implode before hitting the stratosphere. Read CosmicSlot review here!

CosmicSlot was launched at the end of December 2020 by European Company Altaprime Limited. This company has been on fire lately with both Stelario Casino and Regals Casino being opened in 2020. The site is also known for Dozen Spins and All Reels casinos so they have a lot of experience with different brands.

But we do not give any extra points for well-known casino relatives and reviewed CosmicSlot like any other casino. So let’s see if we will be over the moon for this casino.

CosmicSlot bonus

CosmicSlot Bonus and Free Spins

CosmicSlot has a quite comprehensive welcome package in store for new players. During the first two deposits you can claim a $1,500 worth of bonus money and 200 free spins. There is also a special treat for those players who verify their phone number: 10 extra free spins no deposit! So if you would like to check out this casino for free, just go through the phone number verification process that takes less than 10 seconds.

Bonus updated 12.3.2021: When you deposit for the first time, you will have a 100% bonus up to $600 waiting for you (which means you can increase your account balance up to $1,200. The minimum deposit to claim the deposit bonus is $30 but if you wish to claim free spins as well, you need to make a $75 deposit. After that CosmicSlot will unlock 100 free spins to Golden Skulls slot.

The second deposit comes with a 75% bonus up to $450. Again, you will get the bonus by depositing $30 but if you’d like to spice things up with 50 free spins, you need to make a $70 deposit. And finally there is a 50% bonus up to $450 up for grabs – and 50 free spins those gamers who make at least a $75 first deposit.

You need to wager both of these bonuses 35 times before a withdrawal can be asked. Check out the full terms & conditions from the campaign page.

But this is only the beginning. CosmicSlot also has weekly reload bonuses and free spins to keep things interesting. You can also claim 10% cashback bonuses every week up to $700. So if you end up in a losing streak, CosmicSlot will give you a refund.

CosmicSlot Review

We experienced a big deja vu moment with CosmicSlot because it looks almost identical to its sister site Stelario Casino. It is not uncommon for casinos that have been built on the same platform to look alike but in this case, the design theme has taken things a bit too far. The color scheme, space theme and even the graphics are almost the same. If this was a college essay it would not pass the plagiarism checker. We would have wanted to see a little bit of originality.

But not everyone is as picky as us and a lot of you readers probably have not even seen Stelario Casino – and that’s why would like to go through the basics. CosmicSlot takes place in another universe which you can recognize from the planets and other visual effects. The main color applied is purple which creates a nice and soothing atmosphere. The site really is inviting and quite nicely designed.

CosmicSlot is designed for international players and the site works in multiple different languages and currencies. Wherever you might play from, the registration process only takes a couple of minutes. After that you have lots of options for deposits (and a great welcome bonus). The site features over 1,000 slots so you will never be bored.

And we haven’t even gotten to the best part yet. Whenever you are spinning your favorite games, winning tournaments or unlocking new achievements, CosmicSlot will reward you with coins. And you can exchange these coins for bonus money and free spins in the shop! This is definitely a new trend that we’ve seen lately – and we are LOVING it.


Like always, we tested Cosmic Slot on a mobile device as well. Our experience is based on iPhone 11 Pro but the casino works well on all iOS, Android and Window devices. Everything from registration to the first deposit and from game testing to withdrawal went smoothly and we have only positive comments from the mobile casino.

Actually in some ways we preferred the mobile version because it seemed a bit clearer than the desktop version. So if you like gaming on the go, this is a good online casino for that. Just open your device browser, type in and start spinning.

Playing at CosmicSlot

To be honest, CosmicSlot Casino does not shine too bright when it comes down to their game selection. There are approximately 2,000 different online casino games that is becoming to surpass the industry average after the latest additions. They have recently added hundreds of games from the top gaming providers in the world.

There are interesting and exciting stuff from 30 different game studios and also the big boys like NetEnt, Microgaming and Play’n GO are available. It is no wonder that the portfolio is somewhat extensive and at least you can experience something different. They have covered all the areas though by providing you with slots, video poker, lots of table games and live casino for example.

Slots and Jackpot Games

It is easy to browse slots at CosmicSlot Casino as they have built a very sophisticated but yet easy to use casino lobby. You can search and filter games by several attributes and per provider. The best part is probably their smart search bar. When the large companies are missing, it is a great idea to test some slots from the smaller providers. How about Joker Madness from Spinomenal or Neon Blaze from Revolver?

Another big miss is that there really are no jackpot games available. The closest possible product for replacement would be the Megaways slots that have become increasingly popular among growing number of players. You can win quite large amounts up to $600,000 when you trigger the max win but obviously that is no where near to proper progressive jackpot slots’ grand prizes.

Live Casino

Sometimes change is for the good of one’s mind and soul and this applies to the CosmicSlot’s live casino lobby. It is not too extensive as they only offer some tables and games but the providers are pretty interesting. They offer a few traditional games like Blackjack, Baccarat and Texas Hold’em from Vivo Gaming, which is one of the smaller live casino producers.

Live lotto broadcasting is where things get way more intriguing. CosmicSlot is one of the only casinos in the world that offer Lotto Instant Win access to their customers. You can take part in super energetic keno and lottery draws that take place in a constant cycle 24/7. Choose your table or in this case a studio from several options that differ in terms of how many numbers there are in the drum and how many numbers will be drawn. We tested these products ourselves and found it quite amusing really!

Customer Service

Every now and then players might have questions or they might run into some issues. And that’s why a good customer service is very important. CosmicSlot knows this and you can contact their service agents via email, phone or live chat. We recommend using the chat because it is the fastest option.

But you can also send an email to or call to +35635500490. But we urge you to remember that calling an international number might have some hidden fees so email and live chat should be your first options.

Deposits and Withdrawals

CosmicSlot supports various different payments methods. Most players use Visa and MasterCard credit cards that have been extremely popular on all casinos throughout the yers. Another good option is to use Interac (if you live in Canada) since it is the fastest way to deposit and withdraw money to Canadian banks.

You can also use SticPay, Neosurf, EcoPayz, Zimpler or Qiwi depending which country you come from. There is a solid amount of options but we would still have liked to see more e-wallets or banking services.

Players can withdraw €400 per day and €10,000 per month. The limitations are quite low to be honest and withdrawing big winnings might take some time.


Withdrawal limit
€400 per day / €10,000 per month
1×2 Gaming
Deposit methods
Withdrawal methods
Withdrawal times
Visa / Mastercard: 1-3 days
Ecopayz: <24 hours

Player reviews

New Zealand

“Worked really well on a mobile device.”

Review submitted 17.01.2021
Rated 9.00 of 10

“The casino is pretty average but there are some really good features such as the shop and reload bonuses.”

Review submitted 14.01.2021
Rated 8.75 of 10

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Approved by List.Casino

This casino meets all our standards regarding fair play, safety and high customer satisfaction. When a casino is approved by us you can be guaranteed to be treated well and with respectable quality. Our seal of approval also indicates that the overall user experience is above average and they have earned our trust.