4GRINZ – 100% bonus and 100 free spins – Bitcoin Casino

4GRINZ - 100% bonus and 10 free spins - Bitcoin Casino

4Grinz Casino – Online & Mobile:

General Info

4Grinz beyond any doubt is one of the most trusted online bitcoin casinos in the world. The casino licensed by the government of Curacao was launched in 2015 and is operated by a team of experts with decades of experience in the casino gaming industry. With a futuristic and meticulously modeled website they have been able to conduct all operations from registration to payouts in a hassle-free manner.

Welcome Bonus and Rewards

4Grinz do not have any bonus offers as such and is exactly the reason why they can provide instant withdrawals, since there wouldn’t be any need to meet rollover/wagering requirements as in the case of bonuses. As far as promotions are concerned the casino currently offers 100 free spins with a minimum deposit of 30mBTC for three games from Betsoft that includes Alkemor’s Tower, Boomanji and Fruit Zen.

4Grinz makes up for the lack of bonuses by offering different sort of benefits with schemes involving Grinz Points, CoinBack, and Deposit Back. Players get Grinz Points when they start gaming itself. The number of Grinz points a player attains determine the status to which he or she will belong to. When a player accumulates 1000 Grinz points he/she is given the 4Grinz Premium Member status which can be upgraded to the Joy Luck Club (JLC) member status when they have reached 1500 Grinz Points and further to the VIP Red Club status on reaching the 2000 Grinz points mark.

4Grinz with their Coin Back Policy provides at least 100% return in real bitcoin if you happen to lose. It should be noted that one should be at least a premium member to avail the Coin Back offer. While the 4Grinz premium members can claim only 10% Coin Back, the JLC and VIP members can claim 15% and 20% Coin Back respectively.

Deposit Back is another attractive benefit from 4Grinz which provides a 10% refund, even if you win, on the deposits made in the promotional days. Every Monday the premium members can avail 10% Deposit Back of up to 1 BTC. Members of the Joy Luck Club can claim a Deposit Back of 10% of up to 1 BTC on Mondays as well as on JLC Thursdays whereas VIP players can not only claim the 10% Deposit Back on Mondays and Thursdays, but also on special promotional days for up to 2 BTC.

Games and Software

4Grinz has a huge collection of 400 plus games powered by software providers that are the best in the business:

  • Amatic
  • Betsoft
  • Endorphina
  • Ezugi
  • Game Art
  • SoftSwiss

The majority of games in the casino are slots which include Aztec Magic, Desert treasure, Lucky Lady’s Clover, Cherry Fiesta and many more. 4 varieties of Blackjack are also available, namely Multihand Blackjack, Multihand Blackjack Pro, Single Deck Blackjack and Super 7 Blackjack.

All sorts of Roulette that include the popular American, French and European varieties are also in store. Bonus Deuces, Jacks or Better, Tens or Better, Deuces Wild, Wild Texas and All American are among the 16 video poker games offered by 4Grinz.

Ezugi runs the live games department of the casino with Live Baccarat, Live Roulette and Live Sede to mention a few. You can play on the go too as 4Grinz supports mobile gaming which works perfectly with all mobile platforms.

Payments Options

Bitcoin wallets are required for deposits/withdrawal transactions. Cubits, Bitfinex, BitQuick and CoinMama are the bitcoin wallets suggested by the casino. A minimum deposit of 1mBTC is needed to start play. 4Grinz’s major highlight is their instantaneous withdrawal support. The least amount that can be withdrawn is set at 60mBTC. Since storing large amounts of bitcoins in a server is not safe, withdrawals greater than 50 BTC is done through installments at 10% or above for a period until all the bitcoins are paid.

Safety and Security

As far as safety and security is concerned, 4Grinz Casino uses the Random Number Generators (RNG) for fair payouts, and this is verified by iTechLab agency on a regular basis.

Since bitcoins are used the players’ financial information would not be affected in any manner nevertheless both personal and financial data are encrypted using the latest Secure Shell Layer (SSL) encryption technology.


4Grinz do not offer phone support but with a very dedicated and in-house professional customer support team that can be reached via email and live chats all day all night there would be hardly any need to talk in person to resolve your queries.


By using bitcoins for all transactions, requiring only minimal use of one’s financial details, the casino ensures privacy to a great extent. All processes are done at a brisk pace right from registration to withdrawals. 4Grinz plain and straightforward approach with their Coin Back and Deposit Back schemes are also impressive. In short 4Grinz is one of the very few online casinos that value your privacy and time.

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