rollback-netcode

Make P2P multiplayer browser games, no server hosting or synchronization code required. Powered by rollback netcode + WebRTC.

A game inspired by VIDEOBALL using WebSockets, JavaScript Canvas, and rollback netcode

Peer-to-peer deterministic rollback netcode simulation from scratch: state snapshots, speculative input prediction, rolling rollback frames, and fixed-point math.

A small deterministic lab for whole-world rewind and fixed-step reconciliation.

Two browsers, one ball, nothing in between. 1v1 pong with rollback netcode and a copy-and-paste WebRTC handshake. No server.