GoG.com is another site that doesn't believe in taking a holiday break. The classic PC game download site that does not believe in selling games with DRM set ups has just added UFO Aftermath to their line-up. The 2003 strategy game from developer Altar Interactive is very much influenced by the X-Com franchise as humans have to fight off an alien invasion of Earth.

The GoG.com version of the game comes with lots of free extras including wallpapers, artwork, avatars, selected music tracks and more. You can download the game now for just $5.99. The second game in the series, UFO: Aftershock, is to be added to GoG.com in the near future.

In a related note, GoG.com has put four of its Interplay games (Descent 3, Giants: Citizen Kabuto, Sacrifice and Stonekeep) on sale for 30 percent off their normal GoG.com prices until Monday.