Nostalgic fans of the game will be glad to discover OpenTTD, effectively a completely free version of the game. What’s more it has been completely revamped. Graphics have been slightly improved, adding more color, and many new features are now included. The Euro is now part of currencies, you can bribe town authorities and set up international and metropolitan airports among others. Usability is also better, with new features like the autorail build tool or being able to get a cost estimation. You can even play online with up to 8 other players.