X-COM: UFO Defense: all version differences
5 documented differences between the releases of X-COM: UFO Defense, each with a source. Back to the main page for names, releases and where to play.
Category × version
| Category | PS1 | Amiga OCS/ECS | DOS | Windows Collector's Edition |
|---|---|---|---|---|
| Audio | 1 | 0 | 0 | 0 |
| Content | 1 | 0 | 0 | 0 |
| Graphics | 0 | 1 | 0 | 0 |
| Bug fix | 0 | 0 | 1 | 1 |
Version differences
-
AudioPS1
The PlayStation version swaps the PC's MIDI soundtrack for CD-quality music by Allister Brimble and adds 3D models to the UFOpaedia.1
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ContentPS1
The ending differs: on PC the aliens poison the planet, while on PlayStation they kill the negotiator.1
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GraphicsAmiga OCS/ECS
The Amiga OCS/ECS version has lower-quality graphics and no light-source shading in combat but better sound; the AGA and CD32 versions have improved graphics.1
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Bug fixDOS
A known bug resets the difficulty to Beginner after the first combat mission; MicroProse never fixed it officially, but fan patches such as XcomUtil do.1
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Bug fixWindows Collector's Edition
The Windows Collector's Edition brings bugs of its own, such as the blaster bomb bug and a crash when dismantling and rebuilding base facilities.2
Sources
Checked: 2026-10-13