HOLD THE LINE

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How to play

• Pick your bet and press BET. The horde charges your barricade and your shotgun opens fire.
• While the barricade holds, the multiplier climbs: ×1.20, ×2, ×5, ×10 and beyond.
• Press CASH OUT any time and the rescue chopper pulls you out with bet × multiplier.
• If the horde breaks through before you escape, the bet is lost.
• Auto escape pulls you out at the multiplier you set.
• Tap a zombie to point the shotgun at it. This is for fun only: the breach point is set before the round starts and shooting can't change it.

The numbers

ESCAPE AT	CHANCE THE LINE HOLDS
×1.50	64.0%
×2	48.0%
×5	19.2%
×10	9.6%
×100	0.96%

Chance the line holds to ×X is 96% ÷ X, so the return to player is 96% wherever you cash out. About 5% of rounds are overrun straight away. Max bet 100. Max win 2,000 per bet: you are pulled out automatically when you reach it. Payouts round down to the cent.

Keys: Space = Bet / Escape. Demo money only.

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Provably fair

Before you bet, the game locks a secret server seed and shows its fingerprint (SHA-256). The breach point comes from HMAC-SHA256(server seed, player seed : round : 0): u = first 52 bits ÷ 2⁵², breach = ⌊96 ÷ (1 − u)⌋ ÷ 100, at least ×1.00. After the round the server seed is revealed so anyone can re-check it.

Next round

Fingerprint:

Player seed (you can change it):

Round number:

Last round

Reset demo balance

Demo: seeds live in your browser. In the real-money version the server keeps the seed until the round ends.