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Every crypto casino bonus code and offer we track, verified and kept current. Each casino uses a single code field at signup - the code SPINDEX unlocks the welcome bonus across Stake, Rainbet, and Stake.us. Pick a casino below for the full offer and step-by-step claim guide.
Offers and terms vary by region and change over time - always check the current terms on the casino signup screen. 18+ only. Gamble responsibly.
A casino bonus code - also called a referral code, promo code, sign-up code, or affiliate code - is a short string you enter during registration. On the crypto casinos we track, all of those names point at the same single field on the signup form, and using it is always free. On Stake, Rainbet, and Stake.us that code is SPINDEX; on AceBet and Clash.gg there is no code to type and the offer is attached automatically when you sign up through the link.
The code does two things: it links your new account to the offer so you receive the welcome bonus, and it enrolls you in the casino's ongoing rewards - rakeback, weekly and monthly bonuses, and VIP level-ups. It has to be entered before you finish registration, because casinos generally cannot apply a referral after an account already exists.
Most welcome offers are deposit-match bonuses: the casino matches a percentage of your first deposit up to a cap. A 200% match up to $2,000, for example, turns a $1,000 deposit into $3,000 of playable balance. Some offers add free spins on selected slots, and social casinos like Stake.us use sweepstakes currency (Stake Cash and Gold Coins) instead of a cash match.
The headline number is not the whole story - a large match with heavy wagering can be worth less than a smaller, cleaner offer. Before you claim any casino bonus code, these are the terms worth checking:
Crypto casinos add two more advantages worth weighing: deposits and withdrawals settle in cryptocurrency, often within minutes, and provably fair Originals let you verify each game result yourself. Each casino's guide page below links Spindex's free VIP and rakeback calculators so you can estimate the ongoing value, not just the signup bonus.
Stake is one of the largest and longest-running crypto casinos and sportsbooks. Signing up with code SPINDEX unlocks a 200% deposit bonus up to $2,000, but Stake's real strength is its ongoing rewards: instant rakeback that scales with your VIP tier, weekly and monthly bonuses, and automatic entries to the $75,000 weekly raffle. Stake.com is not available in the United States. Full Stake guide.
Rainbet is a crypto casino with provably fair Originals and the biggest headline welcome offer we track: code SPINDEX gives a 250% deposit bonus up to $2,100 plus 60 free spins. Deposits are in crypto and it runs its own VIP program with rakeback and level-up rewards. Full Rainbet guide.
Stake.us is the US-facing social (sweepstakes) casino. It does not use direct crypto wagering; instead you play with Stake Cash and Gold Coins. Code SPINDEX unlocks $25 Stake Cash, 250,000 Gold Coins, and 3.5% instant rakeback on every play. The rakeback compounds forever, which makes it the most valuable part for regular players. Full Stake.us guide.
AceBet is a newer crypto casino and sportsbook (launched 2025) with around 2,800 games, provably fair Originals, and fast crypto payouts. There is no promo code - the welcome offer is applied through the link and gives a 100% deposit bonus up to $1,000 plus 20 free spins. Full AceBet guide.
Clash.gg is a case-opening and games site rather than a traditional casino. There is no code to enter - signing up through the link gives you 3 free cases to open. Full Clash.gg guide.
What is the best crypto casino bonus code?
It depends on the casino, but the code SPINDEX unlocks the welcome offer across Stake (200% deposit bonus up to $2,000), Rainbet (250% up to $2,100 plus 60 free spins), and Stake.us ($25 Stake Cash plus 250,000 Gold Coins). Each casino's full offer and how to claim it is linked below.
Do these casino bonus codes cost anything?
No. Entering a referral or promo code at signup is free - it is a field on the registration form. The code simply links your account so you receive the available welcome bonus and are enrolled in the casino's VIP or rewards program.
Are these bonus codes kept up to date?
Yes. Spindex verifies each welcome code and offer and updates this hub when anything changes. The live bonus drop codes page also tracks time-limited Stake drop codes within minutes of each official drop.
Do I need a code for every casino?
No. Stake, Rainbet, and Stake.us all use the code SPINDEX at signup. AceBet and Clash.gg have no code to type - their welcome offer is applied automatically when you register through the referral link. Either way, the important step is starting from the link so your account is tagged for the offer.
What is the difference between a referral code and a promo code?
On the crypto casinos we track they are the same thing. A referral code, promo code, bonus code, sign-up code and affiliate code all refer to the single field on the registration form. Entering it links your account to the offer and enrolls you in the casino's VIP or rewards program. There is no separate cashier promo box for the welcome bonus.
What are wagering requirements?
Wagering (or rollover) requirements are the number of times you must bet a bonus before you can withdraw winnings from it. A 30x requirement on a $100 bonus means $3,000 in wagers. Slots usually count 100% toward the requirement while table games count far less, so always read the specific terms on the casino's cashier screen before you claim.
Can I claim these bonuses in the United States?
Stake.com, Rainbet and AceBet are crypto casinos that are not available to players in the United States. The US-facing option is Stake.us, a social/sweepstakes casino that plays with Stake Cash and Gold Coins rather than direct crypto wagering. Always confirm whether a site is permitted in your region before signing up.
Which casino has the biggest welcome bonus?
By headline match, Rainbet leads with a 250% deposit bonus up to $2,100 plus 60 free spins, followed by Stake at 200% up to $2,000 and AceBet at 100% up to $1,000 plus 20 free spins. The biggest match is not always the best value, though - Stake's ongoing rakeback and $75,000 weekly raffle can outweigh a larger one-time bonus over time.
