UFO Alien Invasion Tech Demo Christmas Edition

This is a standalone game - you don't need the original demo to play it
The developers of the open source (meaning it's going to be free) game UFO: Alien Invasion have announced that it will take them some more time before they can release their second techdemo, but, to make up for this, they have released a Christmas special - a stand alone version of their first techdemo, this time featuring a campaign with no less than five new maps (including an awesome ufo crashsite) laser weapons, a new soundtrack, several brand-new sounds effects, fires, and improved weapon balance. This turn-based tactical combat strategy game inspired by the X-Com series is powered by a heavily modified version of the Quake 2 engine. Thanks: Sacrusha :)