The hiders get a maze and a head start. The zombies get five minutes. Anyone a zombie catches becomes a zombie and immediately starts hunting the people they were hiding with thirty seconds ago — which is the whole game, really. The hunt accelerates on its own, and a round that looked safe at the two minute mark is rarely safe at four.
Zombies win by catching every last hider before the whistle. A single hider still breathing when it blows wins it for the whole team, including the ones who turned.
Coins are paid out so that no round is a loss: everyone gets a participation payout, the survivor pool splits between the hiders who made it, and patient zero — the one who started it — is paid more than the players they converted.