Each round starts at 1.00× and the multiplier ticks up until the plane “flies away” at a random moment. You place one or two bets (dual bet) and choose when to cash out; if you wait too long, the multiplier crashes and you lose the stake for that bet.
Dual bet lets you hedge or chase two strategies in the same round. That is common for players who lock in a small profit on one ticket while pushing a higher target on the other. Live chat and a feed of other players' wins add a social, arcade feel to a format that is otherwise purely about timing.
Spribe publishes provably fair verification so you can confirm round outcomes weren't altered after the fact. That transparency is a big part of why Aviator earned trust with crash players worldwide.