Transport Tycoon

About the game

Transport Tycoon hands you a century of infrastructure, starting in 1930 with steam engines and dirt roads and ending with monorails threading between skyscrapers your own networks helped grow. The goal is nominally profit; the reality is compulsion — one more station, one more signal block, one more coal route so satisfying to watch run that dawn arrives unnoticed.

Chris Sawyer's simulation gets its depth from interconnection. Towns grow where you serve them, industries thrive or starve on your deliveries, and competitors' rickety networks fight yours for the same coal fields. Railways are the heart: gradients, junctions and semaphore signalling turn every busy line into a solvable engineering puzzle, and the moment a four-train mainline flows cleanly through a hand-built junction is the game's true victory condition.

Written substantially in assembly language and driving huge, bustling isometric maps on modest hardware, it spawned a deluxe edition, RollerCoaster Tycoon's engine lineage and OpenTTD — one of the longest-lived community continuations in gaming.

Technical notes

Isometric engine written largely in x86 assembly, simulating hundreds of vehicles, growing towns and industry chains in real time on 1994 hardware. Documented in DOS and Mac releases.