Gametap's regular Thursday update has been made today because of the holiday and this week the game download/subscription service has once again made the fantasy action-strategy-RPG title Overlord free to play.

You will be able to play the rather unique game from developer Triumph Studios and publisher Codemasters on Gametap until Dec. 29. In addition the latest American McGee's Grimm episode, A Christmas Carol, is free to play until Dec. 31. Two more games have been added to Gametap's premimum service; the Meridian4 published adventure title Al Emmo and the Lost Dutchman's Mine and the Firefly Studios developed RTS game Stronghold Crusader Extreme.