Frequently Asked Questions

Sudokku Multiplayer is a mobile puzzle game that brings the classic Sudoku challenge to life with real-time multiplayer competition. Challenge friends, compete with players worldwide, and earn coins as you solve puzzles faster than your opponents.

Yes! Sudokku Multiplayer is free to download and play. While the game is free-to-play, we offer optional in-app purchases such as coins for cosmetic items and premium features that enhance your gaming experience.

iOS: iOS 13.0 or later

Android: Android 8.0 or later

We recommend having at least 100MB of free storage space and a stable internet connection for the best multiplayer experience.

When you first launch Sudokku Multiplayer, you'll be prompted to create an account. You can sign up using:

• Email address and password
• Apple ID (iOS)
• Google account (Android)
• Facebook account

No, an account is required to play Sudokku Multiplayer. This ensures that your progress, coins, and achievements are saved and secure. It also enables the multiplayer features that make the game unique.

On the login screen, tap "Forgot Password?" and enter your email address. We'll send you a link to reset your password. Check your email (including spam folder) and follow the instructions to create a new password.

You can delete your account from the app settings or by contacting our support team. For detailed instructions, visit our Account Deletion page. Please note that account deletion is permanent.

To start a multiplayer match, tap the "Play" button on the home screen. You can either:

• Invite a friend directly using their username
• Join a random matchmaking queue to play against other players
• Join a tournament with multiple players

Simply solve the Sudoku puzzle faster than your opponent to win and earn coins!

Sudokku Multiplayer offers four difficulty levels:

• Easy: Perfect for beginners
• Medium: For casual players
• Hard: For experienced players
• Expert: Ultra-challenging puzzles

You can choose your preferred difficulty before each match.

You earn coins by:

• Winning multiplayer matches (amount varies by difficulty)
• Completing daily challenges
• Achieving milestones and achievements
• Participating in special events
• Purchasing coins directly (optional)

Yes, during a match you can use the undo feature to revert your last move. You can undo up to 5 moves per game. However, please note that opponents will not see your undos - they only see the final, submitted answer.

Coins can be used to:

• Unlock cosmetic skins for your profile
• Purchase power-ups and hints
• Enter premium tournaments
• Unlock exclusive themes and backgrounds
• Participate in special limited-time events

To purchase coins, open the app and go to the Shop section. Choose your desired coin package and complete the payment through your device's app store (Apple App Store or Google Play Store). All payments are secure and encrypted.

Coins are non-refundable once purchased. However, if you experience a technical issue with your purchase, please contact our support team at support@sudokku.com with your receipt, and we'll help resolve the issue.

Try the following steps:

• Close the app completely and restart your device
• Update the app to the latest version
• Ensure you have a stable internet connection
• Check that you have sufficient storage space
• Uninstall and reinstall the app if the issue persists

If the problem continues, contact us at support@sudokku.com with details about when the crash occurs.

Try these troubleshooting steps:

• Switch between Wi-Fi and mobile data
• Move closer to your Wi-Fi router
• Restart your internet connection
• Disable VPN if you're using one
• Update your device's operating system

If the issue persists, reach out to our support team.

We appreciate bug reports! To report an issue:

• Open the app and go to Settings → Help → Report a Bug
• Or email us directly at support@sudokku.com
• Include details about what happened, when it occurred, and steps to reproduce the issue
• Screenshots or videos are helpful