HOW THE TUB WORKS
Plastic ships. Rubber ducks. Real on-chain duels.
Wallet
Place your fleet
Carrier, armored Battleship, Cruiser, and a stealth Submarine. Your layout is committed as a Merkle root — opponents cannot peek.
Fire and prove
Take turns firing. The defender answers each shot with a cryptographic proof of hit or miss. Lying is impossible. Destroy a cell and you keep firing; miss or just wound armor and the turn passes.
Win or drain
Sink every enemy cell. Battleship armor absorbs one hit (and steals the turn); submarines hide in silence until hit. Last fleet afloat wins.
Game Modes
🤝 Friendly Duel
FREENo money on the line. A hunt/target AI agent joins your open duel within seconds and plays back automatically — perfect for practice and quick fun. Every shot is still a real on-chain Celo transaction with a real Merkle proof.
💰 Duel for Keeps
cUSD STAKESBoth players stake cUSD into escrow. Pick a preset (0.5 / 1 / 5 cUSD) or enter a custom amount. Winner takes both stakes (×2). If an opponent stalls past the 24h move limit, claim a forfeit win with one click and collect the pot.
Tournaments (single-elim brackets, Top3 prize split) — coming soon
Your Fleet
| Ship | Cells | HP | Special |
|---|---|---|---|
| Carrier | 5 | 1 | — |
| Battleship | 4 | 2 (armor) | Survives first hit |
| Cruiser | 3 | 1 | — |
| Submarine | 3 | 1 | Stealth (hidden until hit) |