What it costs you, not your players
Your players always pay nothing. This page is the single place for what Foskaay GGI costs a game developer. If numbers change, they change here, nowhere else.
The fee
A small fee per session, in USDC, charged once at connect: 0.0004 base + 0.0004 per delegated account + 0.0002 per game. Everything inside the session (moves, dice, timers, point credits) is free, so a 200-move game costs the same as a 5-move game. Nothing else is charged. The contracts are live on Arc mainnet; the table below is measured on testnet, which is your real cost preview for mainnet.
What one match really costs
Two delegated accounts, Arc at 20 Gwei, a real compact game. The table shows the rail fee, the Arc gas, and the total you pay.
| Games in one session | Foskaay GGI fee | Arc gas | Total you pay | Per 1,000 games | Games per 1 USDC |
|---|---|---|---|---|---|
| 1 (unbatched) | 0.0014 | 0.005539 | 0.006939 | 6.9390 | 144 |
| 2 | 0.0016 | 0.006039 | 0.007639 | 3.8195 | 262 |
| 4 | 0.0020 | 0.007039 | 0.009039 | 2.2598 | 442 |
| 8 | 0.0028 | 0.009039 | 0.011839 | 1.4799 | 676 |
| 10 | 0.0032 | 0.010039 | 0.013239 | 1.3239 | 755 |
| 20 | 0.0052 | 0.015039 | 0.020239 | 1.0120 | 988 |
| 22 | 0.0056 | 0.016039 | 0.021639 | 0.9836 | 1,017 |
| 25 | 0.0062 | 0.017539 | 0.023739 | 0.9496 | 1,053 |
| 50 | 0.0112 | 0.030039 | 0.041239 | 0.8248 | 1,212 |
How to read it
- Your players pay nothing, always. There is no player-pay option in the rail at all.
- Batch to drop the per-game cost. One session can cover many matches for the same two delegated accounts; only the per-game part grows, so cost per game keeps falling.
- Provable randomness is included, free. Dice, cards and lootboxes derive from the committed seed through the core's pure random (seed, counter); no extra contract and no extra fee.
- Gas shrinks at lower Gwei. At 5 Gwei the Arc gas column is about 4x smaller, and total cost crosses under 1 USDC per 1,000 games around a batch of 4.
- A real compact game. The numbers are measured on Arc testnet with a real game, not guessed.
Want to know the exact numbers for your game? I measure real cost on Arc and can help you shape the contracts so the cost stays low. Hire me, or copy the fee note above and start with the quickstart.