Jammed

Jammed is a traffic simulation game where you draw roads and bridges to connect a growing city. Run the simulation to see how hundreds of vehicles move through your network, then redesign routes and intersections to keep traffic flowing.

Design the road network

Place districts and draw one-way roads freely across the map. Build bridges to cross rivers and connect islands, and create increasingly complex road systems across multiple handcrafted maps. Each connection affects how traffic moves.

Manage a growing city

New districts appear as you play, and roads that worked minutes earlier can become overloaded. Reroute traffic, redesign intersections and build efficient interchanges to prevent bottlenecks and jams.

Track your solutions

The game includes Steam Achievements and Leaderboards, and you can export your best traffic solutions as GIFs.