http://www.jbss.de/hpg_eng.htm
a big model railway and transport sim, shareware try for 92days. reminds me of original SimCity graphics but lots more complex. I like the graphics but you might not.
I was looking for railroad sims and found this site, I played around and its realy good!
Spent a few minutes on the site. Appears the game has been around since 1998 (and the graphics still look 1998-ish) but with ongoing add-ons, patches and versions. I suspect there is a lot to this game but it's not my cup of tea. I couldn't find any indication of what it cost. I was curious about that.