Devnet preview · test tokens, nothing real
Up or down on SOL.
One minute.
Pays 1.9×.
Tap the egg, pick a side, and the next lock is yours. The strike lands in seconds, the result sixty seconds later, every print and every payout settled on chain.
How a round works
- 1
Tap
UP or DOWN, $1 to $20. Your bet joins the next round that locks at least three seconds away.
- 2
Lock
Three to eight seconds later the strike appears: the median of three one-second prints, taken on chain.
- 3
Sixty seconds
Ahead, behind or level, live on the card. No cashing out, no changing sides.
- 4
Result
Right side pays 1.9× the stake. A move inside half a basis point is a tie: the stake comes back.
Fair by construction
Published and recomputed from settled rounds. The house edge is the 1.9× odds, nothing hidden in the price.
The bankroll that pays winners and whatever waits in the queue are read from the chain, every second, by everyone.
Strike and exit are medians of prints taken on chain in fixed seconds. Anyone can send them; the first in each second counts.
Per-bet and daily caps, a session key for tap-to-bet without pop-ups, and breaks from a day to six months that nobody can shorten.
Losing bets earn HEN
Every hour, the holders' share of the house take buys HEN on COOP for that hour's losing bets, in proportion to what each lost. HEN is a fixed-supply token launched on COOP's curve before the game opens; the game never mints it, it only buys. Claims arrive net of HEN's 3% transfer tax, and the tax pays HEN holders in COOP.
Token and launch details are on COOP once the launch is live. Nothing here is advice, and HEN is not needed to play.
What you can play today
The devnet build: the real program and the real screen, with test USDC from the faucet inside the app and a keeper's price for settlement. Connect a wallet switched to devnet, or use the built-in test wallet, tap "Get test tokens", and play. Nothing you win or lose is real.
Open the devnet preview