If you enjoyed this or TT, you should check out -
www.simutrans.com
- a free version that's under constant development - so if you're Japanese you can play with Japanese trains, if USA with US trucks, if Belgian with Belgian horse-drawn carts in 1860 etc... And if someone hasn't drawn the vehicles, you can do your own and post them for others to try. Endless variety - and the programmers are incredibly active so if you find a bug, post it and they'll get right on it. Runs on Win, Mac, Linux BEOS... And if you're not techie, use the Win version and use the installer.