Transport Tycoon

OpenTTD is a business simulation game in which players try to earn money by transporting passengers, minerals and goods via road, rail, water and air. It is an open-source remake and expansion of the 1995 Chris Sawyer video game Transport Tycoon Deluxe.

1994 video game

2004 computer game

Simutrans is a cross-platform simulation game in which the player strives to run a successful transport system by constructing and managing transportation systems for passengers, mail and goods by land (rail, road, tram, monorail, maglev), air (airplanes) and water (ship) between places. Like OpenTTD, Simutrans is an open-source transportation game based on the Transport Tycoon idea.