Floodline
Game
Floodline is a medieval city builder you can play with other people in a browser. Each age ends in a flood, so building a city also means preparing for what comes next.
The simulation uses deterministic lockstep: participating browsers apply the same ordered inputs to advance the game. Multiplayer connections use WebRTC. Connection setup and relaying can involve external infrastructure, so “no dedicated simulation server” does not mean “no network services.”
Checked in Chromium, Firefox and WebKit.