Rainbet is a crypto gambling site that hosts more than 6,500 casino games and an impressive online sportsbook. It accepts Bitcoin, Ethereum, USDT, and 19 other tokens. The site is renowned for offering fast payouts, a smooth user interface, and a decent bonus for crypto casino players. You can use the Rainbet promo code RATE to claim a welcome offer worth up to $2,100, plus 60 free spins.
There are loads of ongoing promos for existing customers, too. This includes daily, weekly, and monthly races, regular reload bonuses, and rakeback every 15 minutes. These promos set Rainbet apart from most rivals. Just bear in mind that Rainbet isn’t available in the US, the UK, Australia, and a few European countries.
This bonus review explains how to activate the Rainbet promo code using a referral code. I also break down the welcome bonus and the ongoing promos, and you’ll also learn more about the games, the user experience, the support, the coins supported, and the payout speeds.
What is the promo code for Rainbet in May?
| Bonus features | Details |
|---|---|
| Rainbet promo code | RATE |
| Welcome bonus | Welcome package of up to $2,100 + 60 free spins |
| Spread across | First three deposits |
| Minimum deposit | $30 |
| Wagering requirement | 40x on bonus and free spin winnings |
| Free spins game | Sweet Bonanza (Pragmatic Play) |
| Max bet while bonus active | 2% of deposit amount per spin |
| Games restricted | You can’t play slots from Hacksaw or Nolimit City with your bonus credits, or any games with an RTP above 97.4% |
| Bonus expiry | 14 days from deposit date |
| Bonus activation | Must be manually activated on the promotions page before depositing |
| Eligible regions | All countries except the US, the UK, France, the Netherlands, Australia, Austria, Germany, and Spain. |
| Last verified | May 21, 2026 |
The Rainbet welcome bonus is worth up to $2,100, plus 60 free spins. This offer is divided into three parts:
- 100% match up to $700, plus 20 free spins: First deposit
- 50% match up to $700, plus 20 free spins: Second deposit
- 100% match up to $700, plus 20 free spins: Third deposit
You need to deposit at least $30 to qualify for each part of the bonus at this crypto online casino. The free spins are available on Sweet Bonanza – a popular slot from Pragmatic Play, which has a 96.48% return to player (RTP) rate.
This offer comes with a 40x wagering requirement, which is pretty high. The requirement is applied to your bonus funds and any winnings you earn from the free spins, but not to your qualifying deposit. That gives you a decent chance of cashing out a profit, but you’d need above average luck.
Here’s an example:
- You deposit $100 after using the Rainbet promo code. Rainbet gives you a match bonus worth $100, and you win $15 from the free spins.
- That leaves you with a balance of $215, but you only need to clear wagering requirements on $115 of it (the bonus funds and the winnings from your free spins).
- You’d need to wager $4,600 ($115 x 40) before cashing out. You choose a slot with a 97.3% RTP rate (games at 97.4% RTP and above are excluded).
- If you wager $4,600 on a slot with a 97.3% RTP, your expected loss would be $124.20 with average luck. That would leave you with $90.80, which is $9.20 less than the $100 you deposited. However, if your luck was slightly better than average, you’d be able to cash out a profit.
How to claim the Rainbet sign up bonus
Follow these steps to claim the Rainbet sign-up bonus:
Step 1 — Create your account and enter the promo code
Visit the Rainbet site and hit the “Register” button. Choose a username, enter your email address, and select a password. In the “Referral Code” section, type in the Rainbet promo code RATE. Accept the terms and conditions, and click “Create Account.”
Step 2 — Activate your bonus before depositing
Open the main menu and select “Promotions.” Hit the blue “Activate Promotion” button under the “40x Wager Locked” bonus. You can then click “Enable Promotion.” A message will confirm that “you’ve successfully claimed this promotion.”
Step 3 — Make your first deposit
Select the green wallet icon at the top of the homepage. Choose a cryptocurrency from the dropdown menu. Rainbet supports 22 tokens, including BTC, ETH, and USDT. You may also need to choose your network. For example, you can send USDT via Ethereum, TRON, Solana, Polygon, or BNB Chain.
Rainbet will generate a unique deposit address and a QR code. Use either of them to transfer the funds to your Rainbet account. The minimum deposit limit varies depending on the coin you select. It’s typically $5 to $15 (or an equivalent amount in your chosen crypto), but you’ll need to send at least $30 to qualify for the Rainbet new user bonus.
Alternatively, you can deposit crypto directly from a wallet like MetaMask or Phantom. If you select the “All Banking and Fiat” option, you can make a fiat-based deposit via online banking, AstroPay, Pix, Interac, or SEPA (depending on where you’re based). Rainbet also gives you the option to buy crypto via Banxa or Moonpay, using a card or eWallet.
Step 4 — Withdraw your winnings
Rainbet will release your bonus funds and free spins when the deposit arrives. You can then start working on the 40x wagering requirement. If you clear it, you can withdraw your winnings.
Select the wallet icon again and choose the “Withdraw” tab. You can then choose a coin and a network, enter the amount you’d like to withdraw, and paste in your address. Hit the “Withdraw” button, and Rainbet will transfer the funds to your wallet.
Ongoing promotions
Rainbet also offers a range of ongoing promotions for existing customers. These are the best offers:
- $25K Daily Race – The top 200 players on the leaderboard share a $25,000 prize pool each day at Rainbet. The top prize is $4,000. Players are ranked by the amount wagered each day, but sports bets are weighted 3x more than casino games.
- $100K Weekly Race – Rainbet’s weekly race has a $100,000 prize pool, which is distributed among the top 500 players. The top prize is $13,000, and the player that finishes 500th gets $42. The weighting is the same: 1x for casino bets, 3x for sports bets.
- $500K Monthly Race – There’s also a monthly leaderboard, with a $50,000 top prize. The remaining $450,000 is shared between the next 999 players, and you’ll get $84 if you finish 1,000th.
- Challenges – Hit a minimum multiplier on a certain game to win a prize. For example, the first player to hit a 5,000x multiplier on the Snow Party slot ($1 minimum bet) wins $2,500.
- VIP program – The program is divided into seven tiers: Bronze, Silver, Gold, Platinum, Diamond, Infernal, and Infernal Diamond. Each tier features levels, and you’ll unlock better perks when you level up. The perks include daily, weekly, and monthly bonuses, plus rakeback. The daily, weekly, and monthly bonuses are tailored to your gameplay. If you qualify for Platinum Level 3, you’ll be assigned a VIP manager.
- Rakeback – Rainbet will give you a percentage of the house edge back on any games you play. Your rakeback rate will depend upon which tier of the VIP program you’re in, but it can go up to 20%, and you can claim it every 15 minutes.
Platform overview
A company called RBGaming N.V. launched Rainbet in 2023. The site is fully regulated, and we haven’t found evidence of any security issues.
Licensing and legal
Rainbet holds a valid license from the Anjouan Gaming Board. The site is regulated by the Offshore Finance Authority of the government of Anjouan – an island in the Indian Ocean – under the Computer Gaming Licensing Act 007 of 2005.
Anjouan licenses aren’t as strong as those issued by strict regulators like the Malta Gaming Authority or the UK Gambling Commission. They allow casinos to welcome players from around the world, without much oversight. Anjouan requires casinos to meet certain standards, but the requirements around player protection and financial auditing are less stringent.
You can file a complaint against an Anjouan-licensed casino if you feel the site is in breach of its license. However, the complaints process isn’t particularly robust, and the regulator is unlikely to intervene meaningfully in a dispute.
Fees and limits
Rainbet doesn’t charge transaction fees, so you’ll only pay the standard network fees when sending crypto. They’re a small fraction of a cent if you use coins like SOL or XRP, but they’re higher on coins like BTC and ETH.
The minimum deposit is $5 (or crypto equivalent) if you use SOL or DOGE, but it’s $15 (or equivalent) via other coins. There are no upper deposit limits, so the site should appeal to high rollers.
Rainbet’s minimum withdrawal limit is $15 (or crypto equivalent). The site doesn’t have official upper withdrawal limits. However, if you’re planning to request a withdrawal of more than $100,000, it’s best to speak to a VIP manager first.
Crypto banking
You can use 22 cryptocurrencies at Rainbet: BTC, ETH, USDT, LTC, SOL, TRX, TON, LINK, XLM, DAI, ZEC, DOGE, ADA, BNB, MATIC, HBAR, USDC, XRP, SHIB, WBNB, CBBTC, and ARB. There are three options:
- Transfer: The site will give you a unique address, and you can transfer the funds to it. The money will be credited to your account balance when the transfer is suitably confirmed. Rainbet only requires one confirmation via most coins, but 10 confirmations are required for certain tokens. Deposits normally take less than a minute via most coins, but you may need to wait longer if you use Bitcoin.
- Deposit from wallet: Connect your wallet to the site. Rainbet pairs with Binance, Coinbase, MetaMask, Phantom, Trust Wallet, OKX Wallet, Rabby, Exodus, Crypto.com Onchain, Bitget Wallet, Rainbow, Uniswap, Solflare, 1inch, TokenPocket, Bitfinex, TronLink, Paribu, and Uphold.
- Buy crypto: If you don’t hold crypto, you can buy ETH, BTC, USDT, LTC, or SOL via Rainbet. Just select the “Buy Crypto” button, choose your coin, and hit “Continue to Onramper.” You can then use Visa, Mastercard, Apple Pay, Google Pay, PayPal, or Revolut to buy the crypto. Rainbet will connect you to Banxa or Moonpay, and you can complete the purchase. The funds will be added to your Rainbet balance.
Rainbet will display your balance in your chosen fiat-based currency. That makes it easier to choose the right bet size. For example, you can bet $10 per hand instead of 0.00014 BTC. There are 18 options, including USD, CAD, and EUR.
The site approves most withdrawal requests automatically. The funds are then transferred to your personal wallet. They’ll arrive in seconds via certain coins, but others take several minutes. Overall, the total withdrawal time is typically 5-15 minutes.
Platform and mobile
Rainbet is a stylish crypto gambling site, which is quick and easy to navigate. The site is divided into two main sections – casino and sports. The casino is home to more than 6,500 games, but they’re divided into lots of neat categories. You can explore slots, table games, live casino games, arcade-style games, live dealer games, new releases, popular games, and so on. There are advanced filters and search options too, so it’s easy to find specific titles.
Rainbet doesn’t offer a native app. You can simply visit the Rainbet site via any browser on your iPhone or Android instead. The mobile site is just like the desktop version, with the same games and features, but the menus and grids have been tweaked to deliver a smooth browsing experience on the smaller screen.
Support and trust signals
Rainbet offers 24/7 support. You can email [email protected] for non-urgent requests, but live chat is a better option if you need immediate support. We tried it out, and an agent answered in less than a minute. There’s also an online help center, but it’s a bit thin. We’d like to see more topics covered, and it would be great if the existing topics were covered more comprehensively too.
The site has received mixed reviews on Trustpilot. Around half of the reviewers have left 1-star ratings, but their complaints aren’t very specific. Most of them are venting their frustration after losing money when playing games on the site, rather than focusing on specific problems. Meanwhile, 43% of the reviewers have left 5-star ratings. However, Trustpilot says it has removed “a number of fake reviews for this company,” so the positive reviews need to be taken with a grain of salt. Elsewhere, Rainbet is rated “Good” on Casino Guru, with broadly positive reviews.
If you’re concerned, you can simply play Provably Fair games on the site. Just click or tap the “Fair Play” button when playing one of the Rainbet Originals, like Crash or Mines. You can then select the “Verify” tab to check the fairness of each round.
Game library
The site featured 6,748 games when we conducted our Rainbet review in March 2026, so there’s no drought of options. You can explore a huge range of slots, virtual table games, live dealer games, and casual games. Rainbet offers slots from 45 studios, from Amigo Gaming to Zillion. Major providers include NetEnt, Nolimit City, Hacksaw, Relax Gaming, Play’n Go, Spinomenal, and Pragmatic Play. You’ll find live casino games from Evolution Gaming and Pragmatic Play too, covering blackjack, roulette, baccarat, game shows, and much more. The site also hosts lots of specialty games, so it’s a very comprehensive library.
Provably Fair games at Rainbet
There are 11 Provably Fair games in the Rainbet Originals section. The range includes popular games like Plinko, Dice, Mines, and Keno, plus fun options like Chicken Cross. You can personally verify the fairness of each round when playing these games. Here’s how it works:
- Server seed – Rainbet generates a random string of characters before the round begins. It’s hashed (encrypted), so you can confirm it existed before you hit “Play,” but you can’t see the actual seed until the round ends. Rainbet can’t change the seed after the round.
- Client seed – You contribute this string of characters. It’s displayed in your account, and you can change it at any time. You control it, so Rainbet can’t manipulate the full input going into each round.
- Nonce – This is a counter, which increases with each bet you place. The nonce (number used once) ensures each round produces a unique result, even if you keep the same seeds.
- Outcome – The server seed, client seed, and nonce are combined to generate the result of each round (when the vehicle crashes, where the ball lands).
After the round, you can rotate your seed pair to reveal the unhashed server seed. You can then use that data to confirm that Rainbet hasn’t tampered with the results. Here’s how to verify the Rainbet Originals.
- Click “Fair Play” and then hit the “Rotate Seed” button. That will display the unhashed server seed.
- Move across to the “Verify” tab and select the game you want to verify. If necessary, enter the difficulty setting that was active during that round.
- Paste in the client seed that was active during the round you’re verifying.
- Enter the unhashed server seed.
- Type in the nonce for the specific bet you want to check.
- Rainbet runs the data through the same algorithm and shows you the result.
If the numbers are the same, the round was fair. Rainbet uses the algorithm HMAC-SHA256. If you’d prefer to check the fairness at an external site, just use any online HMAC-SHA256 calculator.
Sites like Rainbet Casino
Here are some alternative sites to consider before signing up with Rainbet:
- Stake.com: Stake offers a similar game library, user experience, and loyalty program to Rainbet. However, Stake.com is licensed by the Curaçao Gaming Authority, which is a stronger regulator. The site offers more ongoing promos than Rainbet too. Stake.com isn’t available in the US, but it has a sister site called Stake.us, which is a popular sweepstakes casino.
- BC.Game: This crypto gambling site supports a much longer list of payment options than Rainbet. You can use more than 120 cryptocurrencies at BC.Game. The site has more Provably Fair originals than Rainbet too, but the bonuses are similar.
- Jackbit: A strong alternative if you find Rainbet’s wagering requirements a bit steep. The site will give you 100 free spins when you make your first deposit, and they come with a simple 1x wagering requirement. Jackbit also has a strong rakeback program, just like Rainbet.
Rainbet offers a solid welcome bonus, but the ongoing promotions really set this crypto casino apart from its rivals. The daily, weekly, and monthly races are exciting, and we liked the challenges and the regular reload bonuses too. Rival sites offer larger welcome bonuses, and many also have stronger licenses, so Rainbet won’t be for everyone, but it’s worth signing up if you like daily promos, fast payouts, and high limits. You can also claim rakeback every 15 minutes, so the promos never dry up at Rainbet.
FAQs
Why is the Rainbet promo code not working?
You’ll need to enter the Rainbet promo code during the sign-up process, which is also labeled as referral code in the registration form. That will unlock the Rainbet sign-up bonus, which is worth up to $2,100, plus 60 free spins. If you try to enter the bonus code after registering, it won’t work. You also won’t be able to claim the offer if you’re in a restricted country.
Who can play at Rainbet?
Anyone aged 18 or older and based in an eligible country can play at Rainbet. The site welcomes players in all countries apart from the US, the UK, France, Germany, Spain, Austria, the Netherlands, and Australia.
How do crypto deposits at Rainbet work?
Visit the deposit page and select your preferred cryptocurrency from the menu. The site accepts more than 20 coins, from ADA to ZEC. Choose a network and then scan the QR code or copy the wallet address. You can then transfer the funds to your Rainbet account.
How does rakeback work at Rainbet?
Rainbet will give you a percentage of the house edge on each game back. This is known as rakeback, and you can claim it every 15 minutes. Your rakeback rate will depend on which tier of the loyalty program you’re in, but it’s 10% to 20% for most players.
How long do Rainbet withdrawals take?
Rainbet approves most withdrawal requests instantly or within minutes. The funds are then sent to your wallet, and withdrawal speeds will depend upon the coin you select. If you choose XRP, SOL, XLM, or TRX, the funds should arrive within seconds. BTC and ETH transfers normally take longer.
Are Rainbet games actually fair?
Rainbet’s in-house “Originals” games use Provably Fair technology. There are 11 games: Hilo, Chicken Cross, Rock Paper Scissors, Wheel, Plinko, Dice, Limbo, Blackjack, Mines, and Keno. Before each round, Rainbet generates a hashed server seed, which is combined with your client seed to produce verifiable outcomes. You can independently check the results to confirm that the results haven’t been manipulated.
