X-COM: UFO Defense
Turn-based alien defense with squad battles and global strategy
MicroProse Software, Inc · Published by 2K · Released Sep 4, 2008
- Reviews
- Overwhelmingly Positive
- 96% of 3,292
- Recent reviews
- Very Positive
- 100% of 12 in 30 days
- Players
- 37
- daily peak, Nov 7, 2026
- Steam Deck
- Unsupported
- Last update on Steam
- Unknown
- no patch notes on Steam
- Minimum PC
- –
- not published
What is X-COM: UFO Defense?
This is an isometric, turn-based strategy game in which a government-backed organization defends Earth from aliens. You shoot down UFOs, lead soldiers through crash sites to recover alien equipment, and use it for research and manufacturing while monitoring government funding.
For you if...
- +you like difficult, turn-based squad combat against aliens
- +you enjoy making strategic decisions between ground battles
- +you prefer slow, methodical play to quick matches
Not for you if...
- −you want forgiving combat with few soldier losses
- −you dislike managing research and equipment between battles
- −you need a modern interface with clear guidance
What players say
96% of 3,292 reviews are positive · 100% of 12 in the last 30 days
Players praise the tense squad battles and the strategy surrounding them. They complain about the dated, confusing interface and harsh difficulty; several recommend OpenXcom for interface and bug fixes. Some also report crashes or corrupted saves.
Players over time
▲ +7% vs a month agoPlayers online on Steam, one sample a day.
Highest since Sep 2026: 50 players on Oct 18, 2026.
Show the data
| Day | Players |
|---|---|
| Nov 7, 2026 | 37 |
| Nov 6, 2026 | 35 |
| Nov 5, 2026 | 29 |
| Nov 4, 2026 | 31 |
| Nov 3, 2026 | 32 |
| Nov 2, 2026 | 43 |
| Nov 1, 2026 | 41 |
| Oct 31, 2026 | 37 |
| Oct 30, 2026 | 33 |
| Oct 29, 2026 | 39 |
| Oct 28, 2026 | 32 |
| Oct 27, 2026 | 28 |
| Oct 27, 2026 | 41 |
| Oct 26, 2026 | 33 |
| Oct 25, 2026 | 44 |
| Oct 24, 2026 | 34 |
| Oct 23, 2026 | 38 |
| Oct 22, 2026 | 50 |
| Oct 21, 2026 | 41 |
| Oct 20, 2026 | 32 |
| Oct 19, 2026 | 38 |
| Oct 18, 2026 | 50 |
| Oct 17, 2026 | 40 |
| Oct 16, 2026 | 27 |
| Oct 15, 2026 | 29 |
| Oct 14, 2026 | 35 |
| Oct 13, 2026 | 30 |
| Oct 12, 2026 | 47 |
| Oct 11, 2026 | 42 |
| Oct 10, 2026 | 29 |
| Oct 9, 2026 | 32 |
| Oct 8, 2026 | 45 |
| Oct 7, 2026 | 31 |
| Oct 6, 2026 | 22 |
| Oct 5, 2026 | 31 |
| Oct 4, 2026 | 40 |
| Oct 3, 2026 | 29 |
| Oct 2, 2026 | 37 |
| Oct 1, 2026 | 28 |
| Sep 30, 2026 | 34 |
| Sep 29, 2026 | 24 |
| Sep 28, 2026 | 27 |
| Sep 27, 2026 | 38 |
| Sep 26, 2026 | 30 |
| Sep 25, 2026 | 28 |
| Sep 24, 2026 | 27 |
| Sep 23, 2026 | 17 |
| Sep 23, 2026 | 32 |
| Sep 22, 2026 | 31 |
| Sep 21, 2026 | 37 |
Screenshots and trailer
X-COM: UFO Defense system requirements
As published by the developer.
Can my PC run X-COM: UFO Defense?
The published requirements do not name a graphics card we can compare.
Set up my PC →Minimum
- Processor
- 80386 processor or better
- Memory
- 4Mb RAM
Does X-COM: UFO Defense have co-op or multiplayer?
No: single-player only, no multiplayer modes declared.
Does X-COM: UFO Defense run on Steam Deck?
Unsupported No: Valve rates it Unsupported on Steam Deck.
- Not supported on SteamOS
PC version details
- DRM
- None declared on Steam
- Controller
- Keyboard and mouse
- Platforms
- Windows
- Steam features
- Family Sharing
- Languages
- Text only: English.
Does X-COM: UFO Defense use AI-generated content?
No AI-generated content is disclosed on the game's Steam page.
Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam