21bit Casino

  1. 3000 Games
  2. Great bonuses, comprehensive VIP program
  3. Stylish, accessible online casino lobby

Notable software providers and jackpots

  • Betsoft
  • BGaming
  • Big Time Gaming
  • Blueprint Gaming
  • ELK Studios
  • Evolution
  • Games Global
  • Hacksaw Gaming
  • NetEnt
  • Nolimit City
  • Play'n GO
  • Playson
  • Playtech
  • Pragmatic Play
  • Pragmatic Live
  • Push Gaming
  • Quickspin
  • Rabcat
  • Red Tiger
  • Relax
  • Spribe
  • Thunderkick
  • WowPot!
  • Yggdrasil

Bonus at 21bit Casino

Up to 0.102 BTC

Supported chains & currencies

Updated on 30 December 2023 by Self Custodian

Crypto Gambling at 21bit Casino

21bit is a crypto-friendly online casino with more than 3,000 games, a wide range of bonuses and a stylish user interface. A company based in Curaçao launched the site in 2022, and it is fully licensed and regulated by the government of Curaçao. The site may be new to the market, but the parent company is vastly experienced, offering a large suite of popular crypto casinos, and 21bit is one of the jewels in its crown.

Our 21bit Casino review explains why this is one of the best crypto casino sites available. We will discuss the five-part welcome bonus, the weekly reload bonus, the additional promos and the detailed rewards program. You will also learn more about the quick payouts, the game quality and the variety on offer, so continue reading for a detailed 21bit review.

21bit Crypto Casino (2023)

Is 21bit legit?

What countries is 21bit available in?

What is the 21bit promo code?

21bit Casino Overview

21bit Casino
21bit is one of the best all-round crypto casino sites. It offers a large range of games, a stylish user interface with lots of features, quick payouts, wide withdrawal limits, great bonuses and a comprehensive loyalty program.
  1. Adv. Search
  2. Exclusive Games
  3. Fiat Onramp
  4. Gamification
  5. Mobile App
  6. Tournaments
  7. VIP Program

Bonus at 21bit Casino

Up to 0.102 BTC

Welcome Bonus at 21bit Casino

The regular welcome bonus at 21bit Casino is worth up to 0.0333 BTC, plus 0.333 BTC. It is divided into five parts:

  • 100% first deposit bonus up to 0.006 BTC, plus 50 free spins
  • 75% second deposit bonus up to 0.006 BTC, plus 50 free spins
  • 100% third deposit bonus up to 0.006 BTC, plus 50 free spins
  • 125% fourth deposit bonus up to 0.006 BTC, plus 50 free spins
  • 150% fifth deposit bonus up to 0.006 BTC, plus 50 free spins

You need to make a minimum deposit of 0.0005 BTC to claim each part of the bonus. The free spins are available on Aztec Magic Deluxe, and they will be credits in two batches of 25 spins per day. All winnings from the free spins will be paid in bonus credits. This is far from being the best bitcoin casino bonus but for the casual player it might still be useful.

Your bonus credits will have a 45x wagering requirement, and you will be given seven days to satisfy it. Most slots count 100% towards completing the requirements, but there are around 200 excluded games. Table games and live dealer games do not count towards the wagering requirements.

"High-roller" option

There is also a "high-roller" package (their definition of a high roller is pretty generous), which is divided into five parts too:

  • 75% first deposit bonus up to 0.03 BTC, plus 50 free spins
  • 100% second deposit bonus up to 0.03 BTC, plus 50 free spins
  • 125% third deposit bonus up to 0.03 BTC, plus 50 free spins
  • 125% fourth deposit bonus up to 0.03 BTC, plus 50 free spins
  • 150% fifth deposit bonus up to 0.03 BTC, plus 50 free spins

A minimum deposit of BTC 0.0068 will be required for this bonus. The free spins will be available on Primal Wilderness. Winnings from those spins will have a 25x wagering requirement, whereas the deposit match bonus funds will have the standard 45x wagering requirement.

Best bonus at 21bit Casino

+18 - Terms & conditions apply - Gamble responsibly

  • First deposit

    75% up to 0.03 BTC

    + 50 free spins

    • 45x
      Wagering Req.
    • 25x
      FS Wager Req.
    • 0.0068 BTC
      Min. deposit

    To maximize: 0.04 BTC.

  • First deposit

    100% up to 0.006 BTC

    + 50 free spins

    • 45x
      Wagering Req.
    • 45x
      FS Wager Req.
    • 0.0005 BTC
      Min. deposit

    To maximize: 0.006 BTC.

21bit Cryptocurrency Support

Payments are quick and simple at 21bit Casino. It does not charge any banking fees, and you can use a wide variety of cryptocurrencies. Players that do not hold any crypto can use a fiat-based payment option to buy some on the site.


21bit accepts deposits via Bitcoin, Bitcoin Cash, Ether, Litecoin, Dogecoin, USDT, XRP, ADA, TRON and BNB. It has a minimum deposit of 0.0001 BTC, 0.01 ETH, 5 USDT or similar amounts in other currencies, and there are no upper limits or deposit fees.

If you want to buy crypto on the site, you can use Visa, MasterCard or Maestro. Players can send a bank transfer or use services such as MiFinity or Jeton.


Withdrawals are also free at 21bit. It processes most payout requests straight away, so you should receive your funds within just a few minutes. There are no withdrawal fees at 21bit Casino either.

If you use Bitcoin, you can withdraw between 0.002-0.4 BTC. The limits are just 20 USDT to 4,000 USDT per transaction via the leading stablecoin, but they go up to 0.1 ETH to 20 ETH if you use Ether, so that should be suitable for high-rollers.

21bit witdrawal limits per method

Rewards Program at 21bit Casino

There is an eight-tier rewards program at 21bit Casino. The site will award you 21bit-coins each time you play slots, and they are redeemable for bonus cash. The coins will also allow you to move up through the tiers. You earn rewards each time you reach a new rank. These are the levels:

  • New Investor | 2 rewards, up to 10 free spins
  • Shareholder | 10 rewards, up to 84 free spins
  • Day Trader | 10 rewards, up to 135 free spins
  • Crypto Shark | 20 rewards, up to 400 free spins
  • Executive Club | 13 rewards, up to 325 free spins
  • Crypto Millionaire | 17 rewards, up to 680 free spins
  • Bit Billionaire | 15 rewards, up to 1,125 free spins
  • Wolf of 21bit | 10 rewards, up to 1,000 free spins

You will also be able to exchange your 21bit-coins for bonus funds at a better rate when you reach the higher tiers.

Casino Games at 21bit Online Casino

21bit’s online casino is powered by SoftSwiss. It aggregates the content from more than 100 suppliers, from 1x2 Gaming and 3Oaks Gaming to Yggdrasil and Zillion Games. The platform is easy to navigate and full of useful features.

For example, there is a “Top winners” and “Latest winners” section, which allows you to see how your fellow players are getting on. The homepage offers quick links to top games, hot games, fast play titles, live games, slots, new releases, games covered by the Pragmatic Play Daily Drops & Wins contest feature and so on.


The slots are arranged in a huge, six-wide grid, which is neat and aesthetically pleasing. The filter option allows you to check out games from specific providers, or you can browse categories such as Megaways slots, bonus buy slots, Daily Drops and Tropical Fiesta games.

There are no complaints about the game quality or the breadth of the range, as it has thousands of games, allowing 21bit to cater to every possible taste. There are classic slots with basic graphics and gameplay, alongside the latest 3D slots with dazzling features and large jackpots

Games to check out at 21bit Casino

  • Fire in the Hole 2

    Fire in the Hole 2

    • 96.1%
    • 0.20 USDT
      Min bet
    • 100 USDT
      Max bet
  • Zeus vs Hades – Gods of War

    Zeus vs Hades – Gods of War

    • 96.1%
    • 0.10 USDT
      Min bet
    • 100 USDT
      Max bet
  • Mines


    • 97.0%
    • 0.10 USDT
      Min bet
    • 100 USDT
      Max bet

All online casino games

Live Dealer Casino Games

The 21bit live dealer casino features all the best games from Evolution, Playtech, Pragmatic Play and smaller providers. That means you can enjoy loads of roulette, baccarat, blackjack and poker games, plus dozens of Asian games.

Game shows are also available, including Dream Catcher, Monopoly, Cash or Crash and other popular games. There are VIP and Salon Privé games, along with low stakes games, and many different languages are covered. We had no connection or streaming issues when we tested the site out.

Table Games

21bit Casino hosts a strong range of blackjack and roulette games. Its focus is on live dealer titles, but there are plenty of RNG-controlled virtual table games too. For example, you can play French roulette from BGaming, Playtech, NetEnt, Quickfire, Tom Horn or Evoplay, and every blackjack variant is covered.

The site also features poker-style games, including video poker, and games such as craps, three card rummy, top card trumps, War and much more. There are lots of lottery games, number games, virtual sports and crash games too.

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