Simutrans is a freeware. - Official web
Simutrans is a game which is similar to Simcity but it focuses
on transport developing.
You could develop your own bus routes, tram routes, monorail
routes, ship routes or even plane routes in this game by simply
clicking using your mouse or keyboard.
This game is avaliable on Windows, Linux and Mac. And it have
various packs, depending on your choice. pak128 is currently the
most common pack played in Simutrans.
P.S. Please drive right-hand-sided cars in Simutrans!
Screenshots:
You could develop your "kingdom" by making railways or airplane
routes
[URL=http://img535.imageshack.us/i/simscr02.png/][IMG=http://img535.imageshack.us/img535/7233/simscr02.png][/IMG][/URL]
Tired of trains and planes? Why not trying ships?
[URL=http://img541.imageshack.us/i/simscr05.png/][IMG=http://img541.imageshack.us/img541/7848/simscr05.png][/IMG][/URL]
And everyone's favourite: buses!
[URL=http://img40.imageshack.us/i/simscr03k.png/][IMG=http://img40.imageshack.us/img40/2293/simscr03k.png][/IMG][/URL]