UFO: Alien Invasion development team launched a new version of this free MAC game yesterday. Version 2.2.1 contains fixes for the 2.2 version, as well as some new details and options. It’s a turn-based strategy game running on a heavily modified Quake 2 engine.
In this game you’ll be fighting hostile alien forces trying to take over our planet. You’re in charge of a small special ops team assembled for one reason – to fight off the pesky little green aggressors.
However, that’s not all, and in the game you’ll also have R&D teams that will examine aliens, their tech, goals, etc. You’ll need all this in order to successfully fight off the invasion.