Play QuakeWorld Multiplayer Online

A non-commercial unofficial preservation project by pieter.com
Low-latency · client-side prediction
Real QuakeWorld in your browser · up to 8 players · no install

By pieter.com (an online computer history museum). Powered by FTE QuakeWorld. Unofficial fan project — non-commercial and not affiliated with id Software.
Prefer the classic? Play DOS Quake 1 (serial)