UFO: Alien Invasion

UFO: Alien Invasion
Developer(s)UFO: Alien Invasion Team
EngineQuake II engine
Platform(s)Linux, FreeBSD, OpenBSD, Windows, AmigaOS 4, Mac OS X, Android
ReleaseVersion 2.5
28 June 2014 (2014-06-28)
Genre(s)Real-time strategy, turn-based tactics
Mode(s)Single-player, multiplayer

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 was heavily influenced by the X-COM series, especially UFO: Enemy Unknown.

It is based on a heavily modified Quake II engine, and runs on Linux, FreeBSD, OpenBSD, Microsoft Windows, AmigaOS 4, and Mac OS X for both PowerPC and Intel Macs. There is also a version for Android, published on Android Market.