Minimum
- Supported OS: Microsoft® 2000/XP/Vista®
- Processor: 80386 processor or better
- Memory: 4Mb RAM
- Sound Cards Supported: AdLib compatible cards, SoundBlaster compatible cards and the Roland LAPC-1.
Platform
Steam
Region
Global
Global
Delivery
Instant key
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Standard / GLOBAL
Media
About this game
96%
Overwhelmingly Positive2 967 Steam reviews
Show more Show less
You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace.
Features:
Command deadly close-combat battles
Shooting down UFOs is just the beginning: you must then lead a squad of heavily-armed soldiers across different terrains as they investigate the UFO crash site. Tackle the aliens with automatic rifles, rocket launchers, and even tanks in the struggle to retrieve useful technology, weapons or life forms.
Research and manufacture alien technologies
Successful ground assault missions will allow X-COM scientists to analyze alien items. Each new breakthrough brings you a little closer to understanding the technology and culture of the alien races. Once you have sufficient research data on the UFO's superior weapons and crafts, you'll be able to manufacture weapons of equal capability.
Develop a strategy to save the Earth
You must make every crucial decision as you combat the powerful alien forces. But you'll also need to watch the world political situation: governments may be forced into secret pacts with the aliens and then begin to reduce X-COM funding.
System Requirements
Player reviews
Show more Show less
Recommended· 16 Jul 2026
Been playing this game doe decades up to today. Still my favourite version of the franchise. I love how free you are... Free to become the global supplier of laser cannons to make millions and killl a few aliens while...
Recommended· 11 Jul 2026
It is truly one of the most iconic games of its time.
Recommended· 9 Jul 2026
I've been playing this game since it came out and my roommate at the time hooked me on it. Just fun to play and lose yourself in some fun turn-based alien hunts
Recommended· 10 Jul 2026
awesome old school game, dont make them like they used to
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a month ago
Time to Play: The 2K Summer Sale is Officially Live on Steam<p class="bb_paragraph">The 2K Summer Sale is officially live on Steam, and it’s the perfect excuse to find your next great escape. Summer is about having the time to truly immerse yourself, dive deep into a world, and remember exactly why you fell in lo
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X-COM: UFO Defense - PC (Steam)
Standard / GLOBAL
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X-COM: UFO Defense - PC (Steam)
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Sale price
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Regular price
About
You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace. Features: Command deadly close-combat battles Shooting down UFOs is just the beginning: you must then lead a squad of heavily-armed soldiers across different terrains as they investigate the UFO crash site. Tackle the aliens with automatic rifles, rocket launchers, and even tanks in the struggle to...
- Platform
- Steam (PC)
- Developer
- MicroProse Software, Inc
- Publisher
- 2K
- Release date
- 4 Sep, 2008
- Languages
- Genres
- Strategy
- Product type
- Digital key / activates on Steam
Supported languages
| Interface | Audio | Subtitles | |
|---|---|---|---|
| ✓ | — | ✓ |
Media
Description
You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace.
Features:
Features:
- Command deadly close-combat battles
Shooting down UFOs is just the beginning: you must then lead a squad of heavily-armed soldiers across different terrains as they investigate the UFO crash site. Tackle the aliens with automatic rifles, rocket launchers, and even tanks in the struggle to retrieve useful technology, weapons or life forms.
-
Research and manufacture alien technologies
Successful ground assault missions will allow X-COM scientists to analyze alien items. Each new breakthrough brings you a little closer to understanding the technology and culture of the alien races. Once you have sufficient research data on the UFO's superior weapons and crafts, you'll be able to manufacture weapons of equal capability.
-
Develop a strategy to save the Earth
You must make every crucial decision as you combat the powerful alien forces. But you'll also need to watch the world political situation: governments may be forced into secret pacts with the aliens and then begin to reduce X-COM funding.
System Requirements
Minimum
- Supported OS
- Microsoft® 2000/XP/Vista®
- Processor
- 80386 processor or better
- Memory
- 4Mb RAM
- Sound Cards Supported
- AdLib compatible cards, SoundBlaster compatible cards and the Roland LAPC-1.
Best Reviews
👍 Recommended · Steam player · 16 Jul 2026
Been playing this game doe decades up to today. Still my favourite version of the franchise. I love how free you are... Free to become the global supplier of laser cannons to make millions and killl a few aliens while you are at it lol
0 found this helpful
👍 Recommended · Steam player · 9 Jul 2026
I've been playing this game since it came out and my roommate at the time hooked me on it. Just fun to play and lose yourself in some fun turn-based alien hunts
0 found this helpful
👍 Recommended · Steam player · 10 Jul 2026
awesome old school game, dont make them like they used to
0 found this helpful
Recent Reviews
👍 Recommended · Steam player · 16 Jul 2026
Been playing this game doe decades up to today. Still my favourite version of the franchise. I love how free you are... Free to become the global supplier of laser cannons to make millions and killl a few aliens while you are at it lol
0 found this helpful
👍 Recommended · Steam player · 11 Jul 2026
It is truly one of the most iconic games of its time.
0 found this helpful
👍 Recommended · Steam player · 10 Jul 2026
awesome old school game, dont make them like they used to
0 found this helpful