OpenTTD

Meet OpenTTD

OpenTTD is an open-source transport simulation based on Transport Tycoon Deluxe. Build rail, road, water, and air routes for a transport company, then manage the vehicles and stations using them. Larger networks require signals, waypoints, junctions, and orders that connect the services.

Multiplayer lets several people run companies in the same game. Maps, scenarios, heightmaps, additional resource sets, and computer-opponent settings change how play develops. Construction and simulation settings adapt the challenge, with saved games available for continuing a network later. The official manual explains the transport systems and the tools used to build them.