Smart contracts
The addresses of the on-chain contracts Stacked runs on Base, so anyone can read the code and verify activity for themselves. This is a technical reference — you don't need anything here to play.
How the contracts are organized
Stacked uses two independent contract systems on Base, an Ethereum-based network with very low fees:
- Cash tables. Each real-money cash table is its own contract, deployed when the Host creates the table. There's no single shared address — every table is a separate contract you can open on Basescan from the table view.
- Tournaments. Each tournament is its own contract, created by a shared TournamentFactory when the tournament opens. The factory, its implementation, and the tournament template are fixed addresses, listed below. The tournament system runs its own separate operator registry, so a tournament issue can never affect cash-table funds.
All contracts are source-verified on Basescan, the public block explorer for Base, so the exact code each one runs is open to inspect. The tournament contracts are covered by an automated test suite; an external security audit is on the roadmap and not yet complete.
Base mainnet
| Contract / role | Address |
|---|---|
| TournamentFactory (proxy) | 0xF3c45CAB6235c163F2a4a1859ECb063c9A32E652 |
| TournamentFactory (implementation) | 0xe3fa363cFe27af9fE79e675f5F543E3CE2B0EB2f |
| Tournament (implementation) | 0x60EFf0C6068DD190826E8d900Be9Ddcff20a2Ba5 |
| UpgradeableBeacon | 0xEc86B3882965a94e2A9D2416Bb6a643ff46c30D8 |
| Admin | 0xFA04cC2127216C2699Fa1e1D9BD74cD3C583445b |
| Platform wallet | 0xf272943b70d36F4b5EFbDF76f25237184b5CEF6a |
| USDC | 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
Base Sepolia (testnet)
| Contract / role | Address |
|---|---|
| TournamentFactory (proxy) | 0xfDC0bf9b1ef67492561ddD605c408E1B73efc7EE |
| TournamentFactory (implementation) | 0x9f5B2C5c495c859Afdbe750A1D3299a1C44C0047 |
| Tournament (implementation) | 0xa5722b6FE467E0Dd6b957Fe2581657D80Cc29Aef |
| UpgradeableBeacon | 0xD0d8e97f398c65e3374ef939Da33F7da0311C3aC |
| Admin | 0xFA04cC2127216C2699Fa1e1D9BD74cD3C583445b |
| Platform wallet | 0xf272943b70d36F4b5EFbDF76f25237184b5CEF6a |
| USDC | 0x036CbD53842c5426634e7929541eC2318f3dCF7e |
What's next
- Tournaments → — how tournaments work for players.
- How fees work → — the full fee schedule.
- Security & contracts → — the broader contract security story.