UFO: Alien Invasion is a strategy video game in which the player fights aliens that are trying to take control of the Earth. The game is heavily influenced by the X-COM series (mostly by UFO: Enemy Unknown).
It is based on a modified id Tech 2 engine, and runs on Linux, Microsoft Windows, AmigaOS 4, and Mac OS X for both PPC and Intel Macs. There is also a version for Android, published on Android Market.
Currently, version 2.4 is the most up to date stable version (released April 22, 2012). Licensed under the GNU General Public License, UFO: Alien Invasion's engine is free software and its artwork is distributed under various open source licenses. Development is coordinated through SourceForge.net.
Famous quotes containing the words alien and/or invasion:
“We returned to our places, these Kingdoms,
But no longer at ease here, in the old dispensation,
With an alien people clutching their gods.
I should be glad of another death.”
—T.S. (Thomas Stearns)
“An invasion of armies can be resisted, but not the invasion of ideas.”
—Victor Hugo (1802–1885)