The 2009 one.
The real good thing about this game is the Multiplayer. One slight problem is that it only works over LAN now that there are no servers, so you need to use something to make a virtual one. In the past I used Hamachi, but there's probably a better alterative now (Tunngle?). Maybe you can use Steam's remote play thing?
This Youtube channel has some vids: https://www.youtube.com/user/Prinsdam