What is Seeja?
Seeja is an ancient strategy board game with a 7x7 battlefield, custodial captures, ransoms, and tactical dog placements. fully on-chain on Massa, with zero backend servers. Every move, every capture, every coin ,it all lives on the blockchain.
No server. No database. No middleman. Just pure decentralized strategy.
How It Works
Stake & Play
- Each player stakes 24 MAS to enter a game
- Winner takes 44 MAS (4 MAS platform fee)
- If you cancel a waiting game, you get a full refund
- If you surrender, your opponent wins the pot
Game Flow
- Connect wallet (Bearby or MassaStation)
- Create or Find a game : “Find Game” auto-matches you with a waiting opponent, or creates a new game if none available
- Place your dogs : Take turns placing 24 pieces each on the 7x7 board (center cell is sacred . no one can place there)
- Move & Capture : Sandwich opponent pieces between yours to capture them. Capture all or block all to win
- Ransom
The Board
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7x7 grid, 24 dogs per player (48 total)
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Custodial capture: trap an enemy piece between two of yours (orthogonally)
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Anti-stalling: you can’t move the same piece more than 4 times consecutively
Technical Architecture
Smart Contract
-
Language: AssemblyScript compiled to WASM
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Address:
AS12hht2tUKtcTR89DrdLdChgh3sju5kZ5pCgGJag7x8k2XFAv1Lf -
All game logic on-chain: board state, move validation, capture detection, win conditions, stake management
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12-tier military ranking system: Apprentice to Marshal, based on cumulative points
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Top-100 leaderboard: single read call, no N+1 queries
Contract Functions
| Function | Type | Description |
|---|---|---|
createGame |
Wallet (popup) | Stake 24.5 MAS, register session key |
joinGame |
Wallet (popup) | Stake 24.5 MAS, join existing game |
placeDog |
Session key | Place a piece during placement phase |
makeMove |
Session key | Move a piece during movement phase |
surrender |
Session key | Forfeit the game |
requestRansom |
Session key | Reclaim a captured piece |
cancelGame |
Both | Cancel a waiting game (full refund) |
handleTimeout |
ASC | Auto-forfeit AFK players |
handleGameExpiry |
ASC | Auto-cancel stale waiting games |
processCleanup |
ASC | Batch cleanup of old game data |
What Makes This Different
| Feature | Seeja | Typical Web3 Games |
|---|---|---|
| Game logic | 100% on-chain | Off-chain server |
| Frontend hosting | DeWeb (on-chain) | AWS/Vercel |
| Move signing | Session keys (no popups) | Wallet popup every action |
| Timeout handling | ASC (autonomous) | Manual or centralized cron |
| Data cleanup | ASC (autonomous) | Admin scripts |
| Backend server | None | Required |
Zero servers. Zero databases. Zero centralized infrastructure.
The smart contract IS the server. DeWeb IS the hosting. Massa IS the runtime.
Links
- Play now: seeja.deweb.half-red.net
- DeWeb domain:
seeja.massa(via MassaStation) - Game contract: AS12hht2tUKtcTR89DrdLdChgh3sju5kZ5pCgGJag7x8k2XFAv1Lf
- Website contract: AS1nK8rzGDwkJpsxHRd7Xt6YgKUGiLJ4vz5ZN8cf3pBSGo4enRLr