On Solana · every round settled on chain

Up or down on SOL.
One minute.
Pays 1.9×.

Tap the egg, pick a side, and the next lock is yours. The strike is fixed twenty seconds after the lock, the result a minute later, every price and every payout settled on chain.

Play now How a round works
SOL · Binance — 60 s · —

How a round works

  1. 1

    Tap

    UP or DOWN, from $1 up to the table's cap. Your bet joins the next round that locks at least three seconds away.

  2. 2

    Lock

    Three to eight seconds later the round locks. The strike is the average price of Binance's SOL perpetual over the twenty seconds after the lock, posted on chain.

  3. 3

    Sixty seconds

    Ahead, behind or level, live on the card. No cashing out, no changing sides.

  4. 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

Pays back 95.5%

Published and recomputed from settled rounds. The house edge is the 1.9× odds, nothing hidden in the price.

Every bet covered before it is taken

The nest egg that pays winners is read from the chain by everyone, and a bet is accepted only while it covers every open round. A win is paid in full the moment the round settles.

Nobody picks the price

Strike and exit are volume-weighted averages of twenty seconds of trades on Binance's SOL perpetual, in windows the clock fixes. The house posts them, and anyone can recompute both from Binance's public archive.

Limits you set

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

Five percent of every losing stake is set aside the moment its round settles, win or lose for the house, and bought as HEN on COOP within the hour 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. Nothing here is advice, and HEN is not needed to play.

How to play

Connect a Solana wallet, put USDC on the table, and approve a session once: from then on every tap on the egg is a bet, with no pop-ups. Your money sits in a vault only your wallet can withdraw from, any time. Add Henhouse to your home screen from the menu and it opens like an app.

Play now