OpenTTD is an open source reimplementation of the Microprose game Transport Tycoon Deluxe (TTD). As president of a start-up transportation company in (typically) 1950, you have a choice of building rail, road, air and maritime transportation routes to build up your transportation empire. Outsmart your competition by beating them to attractive passenger and commodities routes to become the game's highest-ranking transport company by the year 2050.

OpenTTD is based on Chris Sawyer's Transport Tyc