Royal Casino Onxtra is a provably fair crypto casino operated by Onxtra Ltd. We offer Crash, Slots, and Mines games where every outcome is determined by cryptographic hashes that you can independently verify.

Enter your email address and we'll send you a 6-digit verification code. After verifying, complete your profile with basic information (username, name, date of birth, country). No password needed — we use secure OTP authentication.

Online gambling laws vary by jurisdiction. It is your responsibility to ensure that using our platform is legal in your location. You must be at least 18 years old (or the legal gambling age in your jurisdiction) to play.

Enter your email and we'll send a one-time code. Enter the 6-digit code to access your account. Codes expire after 5 minutes for security.

Passwordless authentication is more secure. Passwords can be guessed, reused, or stolen in data breaches. Our OTP system sends a fresh code to your verified email for every login — there's nothing to steal or forget.

Your account is protected by OTP email authentication, TLS/SSL encryption, rate limiting on all endpoints, Cloudflare Turnstile CAPTCHA on authentication forms, and HMAC-SHA256 webhook verification for payment processing.

Yes. We encrypt all data in transit with TLS, use database-level security for data at rest, never store passwords (because we don't use them), and never share personal data with third parties for marketing purposes. See our Privacy Policy for full details.

Click 'Deposit' in your dashboard, enter an amount ($1–$10,000), and you'll be redirected to our secure payment gateway to complete the transaction. Funds are credited to your wallet once the payment is confirmed.

Minimum deposit is $1 and maximum is $10,000 per transaction. You can also set personal deposit limits for responsible gambling.

Deposits are credited after blockchain confirmation, typically within a few minutes depending on network conditions. You'll see a processing status in your transaction history.

We accept cryptocurrency deposits through our secure payment gateway. All balances are displayed in USD.

Provably fair means every game outcome is determined by a cryptographic server seed before you place your bet. After the game, we reveal the seed so you can verify the result mathematically. It's impossible for us to manipulate outcomes.

Visit our Provably Fair Verifier page. Enter the server seed and game details revealed after each round. The tool will recalculate the outcome using the same algorithm, proving the result was fair.

We currently offer three games: Crash (multiplayer — watch the multiplier climb and cash out), Slots (classic 3-reel with symbol matching), and Mines (5x5 grid, avoid mines to increase your multiplier). All are provably fair.

Our games have a transparent house edge built into the algorithms. Crash has approximately 3% house edge (through the instant-crash probability). All game mechanics and payout tables are publicly documented on our How to Play and Provably Fair pages.

Yes. We offer deposit limits (daily, weekly, monthly), session time reminders, and cool-off periods (24 hours, 7 days, or 30 days). Contact support@onxtra.com to configure your limits.

You can request permanent self-exclusion by contacting support@onxtra.com. Once activated, your account will be closed and cannot be reopened. This is a permanent, irreversible action to protect you.

Please visit our Responsible Gambling page for warning signs and resources. You can also contact the National Council on Problem Gambling at 1-800-522-4700, Gamblers Anonymous at gamblersanonymous.org, or GamCare at 0808 8020 133.