Budokan
Budokan is an onchain tournament system designed to power competitive gaming experiences on Starknet. It provides a robust, modular, and extensible framework for:
- Creating and managing tournaments with flexible schedules and rules
- Supporting a variety of entry requirements and fee structures
- Handling prize pools and distribution (ERC20, ERC721, and custom tokens)
- Integrating with embeddable game standards for seamless game onboarding
- Real-time indexing via native Starknet events, REST API, and WebSocket subscriptions
- TypeScript SDK with React hooks for rapid frontend integration
Launch App
Table of Contents
Contracts
Mainnet
| Contract | Mainnet Address |
|---|---|
| Budokan | 0x0596ced030e74ebc37f33607f07ecd5a62eff22cdc4ae31fe2d724040c1bdc0b |
| BudokanViewer | 0x013c8239361fdbd7ec26db2c83f4ff270c5bba83a0bc105b4005b676ff57fdbe |
Sepolia
| Contract | Sepolia Address |
|---|---|
| Budokan | 0x017750a167b7c4968249d7db06dccc8b3908ef8954cb40cfe4d3c651ca0dcd1d |
| BudokanViewer | 0x03d5febe0042b943967074f4ebd850a6b5d50850cd3fb84fbd0eb66dadd9ddec |
Entry Requirement Validators
Preset extension validators from metagame-extensions that are deployed and ready to use as the entry_requirement argument to create_tournament. See Entry Requirements → Available Validators for what each one does, and the Metagame Extensions reference for the underlying component model.
Mainnet
Sepolia
Key Features
- Modular Architecture: Components for tournaments, games, schedules, and prizes can be extended or replaced.
- Secure and Permissionless: Anyone can create or enter tournaments, with robust checks for entry requirements and prize claims.
- Flexible Entry and Prize Logic: Supports entry fees, qualification proofs, and multiple prize types.
- Leaderboard and Scoring: Built-in leaderboard management and score submission.
Use Cases
- Esports tournaments for onchain games
- Community competitions and challenges
- Automated prize distribution for game events
- Open standards for game developers to integrate with tournament infrastructure
Budokan is designed to be the backbone for provable, transparent, and fair onchain competitions, enabling new forms of player engagement and game design.