While the launch of the Mac client for Steam and its free Portal deal is certainly something to crow about, one of Steam's main rivals Direct2Drive has a rather nice sale of its own. From now until May 19 you can purchase and download Rome: Total War Gold Edition for a mere $2.50, a 75 percent saving from its normal price.

The historical RTS game from developer The Creative Assembly was first released in 2004 by its former publisher Activision (Sega now owns the developer and the entire Total War game franchise). The Gold Edition contains the original game and its expansion pack The Barbarian Invasions and is considered to be one of the best, if not the best, games in the series.