Apollo7
A real-time multiplayer "crash" game: players place bets before each round, watch a rocket-driven multiplier climb, and race to cash out before it crashes — all synchronized live over WebSockets.

Built with
React.jsSocket.ioNode.jsPostgreSQL
Apollo7 is a real-time implementation of the classic "crash" game format. Each round, players place their bets during a countdown, then a rocket takes off and a multiplier climbs continuously; the goal is to cash out before the rocket crashes at a randomly determined point. The interface shows live round history with color-coded multipliers, online player presence, connection latency, and per-round identifiers.
The technically demanding part is the real-time layer: every connected player must see the same multiplier at the same instant, with bets, cash-outs, and round transitions resolved server-side and pushed over WebSockets at low latency. The game supports two simultaneous bet slots per player, configurable auto-cashout thresholds, min/max stake controls, and a wallet balance system, making it a solid showcase of real-time state synchronization, server-authoritative game logic, and fairness-critical random number generation.