I'm looking for a game... (this is not a "help me remember that game" topic)

[ShiverMeSideways]

Hello. Well, recently, I've been using the subway a lot to get 'round Bucharest, and I've got quite a fascination with it, and I was wondering if a sim/tycoon game existed where I would manage the subway sistem: build tunnels, stations, manage trains, everything...

I know it's a reaaaally big long shot, but who knows, I've been surprised before...

Can someone point me in the right direction? Thanks in advance...

[Ghost]

Something like this a good starter? I think they have a subway section. Personally, I prefer the kind of sub with extra condiments. Like, say, meatball 

[Radiant]

Railroad tycoon?

[Haddas]

Try OpenTTD.

http://www.openttd.org/screens.php

It's an amazing game and it'll take hours and hours away from you. Not strictly trains, but it is the main focus of the game. The networks can be as simple or complicated as you choose them to be