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:
“Just kids! That’s about the craziest argument I’ve ever heard. Every criminal in the world was a kid once. What does it prove?”
—Theodore Simonson. Irvin S. Yeaworth, Jr.. Jim Bird, The Blob, responding to the suggestion that they not lock up the teens pulling the alien “prank,” (1958)
“Every collectivist revolution rides in on a Trojan horse of “Emergency”. It was a tactic of Lenin, Hitler and Mussolini.... The invasion of New Deal Collectivism was introduced by this same Trojan horse.”
—Herbert Hoover (1874–1964)