OpenXcom

OpenXcom

Free
It is an open-source clone of the original UFO: Enemy Unknown game
3.0  (2 votes)

OpenXcom is an open-source clone of the original UFO: Enemy Unknown game. You can port the game to any platform you like, customize it to your liking or use it to make your own far-fetched remakes, play the game natively without any need for emulators, tweak the game to your heart’s content.

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