How to use the Rainbet promo code BOOST20
- Largest headline package: up to $2,100 across your first deposits
- Permanent 20% rakeback boost is unusual and adds up for regulars
- Card and fiat deposits accepted — no crypto needed
- Aviator, Speed Crash and a dozen other crash titles
- Sweepstakes-style daily races with real prize pools
- No in-house original Crash — provider games have higher house edges (3–4%)
- Bonus is spread over several deposits
- Free spins are slot-only
Rainbet sign-up bonus with code BOOST20: what the package includes
Rainbet runs the largest headline package in our comparison: up to $2,100 in deposit bonuses, 60 free spins and an exclusive 20% rakeback boost with the code BOOST20. The deposit part is spread over your first deposits rather than being a single match, so read the offer breakdown after you register.
The piece we care about is the rakeback boost. It is permanent, it stacks with Rainbet’s standard VIP rakeback and it needs no wagering — for a player who grinds crash at 1.5x all month, it is worth more than the match.
Crash games you can play with the Rainbet bonus
Rainbet is the one casino in our list without a home-grown Crash original. Instead it carries the provider classics: Aviator by Spribe (97% RTP, two simultaneous bets, that famous red plane), Speed Crash by Hacksaw and a handful of others. The gameplay is identical to crash — place a bet, cash out before the plane leaves — but house edges are higher than the 1% you get at Stake or Shuffle. Treat Rainbet as the bonus-and-rakeback stop and keep that in mind when sizing bets.
Aviator has a full fun-play mode on Rainbet, which is what you see in our screenshot. It is a decent way to learn the rhythm before depositing.
Payments and daily races
Rainbet accepts cards as well as crypto, which is rare in this list and makes it the simplest on-ramp for newcomers. Daily, weekly and monthly wager races pay out prize pools on top of rakeback — again, free upside if you were going to play anyway.
Rainbet affiliate code vs promo code: which one is BOOST20?
Both. Rainbet runs one code system: the affiliate (referral) code you enter at registration is also the promo code that unlocks the welcome package, so BOOST20 covers the deposit bonuses, the free spins and the permanent 20% rakeback boost. Rainbet occasionally posts a small no deposit bonus or “free $10” promotion on its socials; those are time-limited and not part of the sign-up code.
RainbetPromo code BOOST20 · Up to $2,100 + 60 free spins + 20% rakeback boostFinal verdict: why play Crash at Rainbet
Rainbet is for players who want Aviator and a wide crash catalogue rather than one house original. The BOOST20 package (up to $2,100 plus free spins and a permanent 20% rakeback boost) is the largest total bundle in our table, and the daily races add value on top.
The trade-off is Aviator's 3% edge versus 1% at Stake or Shuffle. If you prefer provider crash games and bigger welcome packages, Rainbet is the pick; if you want the lowest edge, look at the 1% sites first.
Rainbet promo code & crash bonus FAQ
Does Rainbet have a crash game?
Rainbet does not run its own original Crash, but it carries Aviator by Spribe, Speed Crash by Hacksaw and other crash-style titles. Aviator runs at 97% RTP.
What is the Rainbet rakeback boost?
The BOOST20 code adds 20% on top of the standard rakeback rate for the lifetime of your account — it is the most valuable part of the offer for a regular player.
Can I claim the Rainbet bonus with a card?
Yes, Rainbet accepts card deposits in supported countries, which makes it the easiest entry point if you don't hold crypto.
Is Rainbet legit?
Rainbet is a licensed Curaçao operator launched in 2022 with a large sponsorship footprint. Withdrawals in our tests were processed within an hour.
Is the Rainbet affiliate code the same as the referral code?
Yes. BOOST20 is entered once at sign-up and covers the welcome bonuses, free spins and the 20% rakeback boost.
Does Rainbet have a no deposit bonus?
Only occasional social-media promotions. The standing offer requires a deposit; the rakeback boost is permanent once the code is on your account.
Bonus details are checked regularly but can change without notice — always read the current terms on the operator’s site before depositing. crashgambling.games is an affiliate site: we may receive a commission if you register via our links. 18+ only. Gamble responsibly.
Reviewed by Elena Voss · last updated October 12, 2026