UFO Screenshots
It is the year 2084. You control a secret organisation charged with
defending Earth from a brutal alien enemy. Build up your bases, prepare
your team, and dive head-first into the fast and flowing turn-based
combat.

UFO: ALIEN INVASION is a squad-based tactical
strategy game in the tradition of the old X-COM PC games, but with a
twist. Our game combines military realism with hard science-fiction and
the weirdness of an alien invasion. The carefully constructed
turn-based system gives you pin-point control of your squad while
maintaining a sense of pace and danger.

Over the long term you will need to conduct
research into the alien threat to figure out their mysterious goals and
use their powerful weapons for your own ends. You will produce unique
items and use them in combat against your enemies. If you like, you can
even use them against your friends with our multiplayer functionality.

'UFO: Alien Invasion'. Endless hours of gameplay -- absolutely free.

The game takes a lot of inspiration from the X-COM series by Mythos and
Microprose. However, it's neither a sequel nor a remake of any X-COM or
other commercial title. What we as a team wanted to make is a brand new
experience that tries to surpass the quality of games from 1992, rather
than simply recreate them with flashier graphics.

We also believe that open-source projects don't
need to be disorganised or badly-managed. We work together in a
friendly and professional way, with a clear vision for a game that we
know is worth playing.

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1 comment by mattn on Nov 10th, 2013

A new game I'm working on is now available for Android. If you like the game, please rate it.


CaveExpress is a classic 2D platformer with physics-based gameplay and dozens of levels. Master your pedal-powered flying machine to pick up packages from your cave-dwelling clients and drop them off
at the collection point. But beware! Mighty mastodons, terrifying pterodactyls and others would rather see you extinct.

I'm also working on a Windows version released on Desura. It will be available soon.

Caveproductions.org
Play.google.com

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UFO: AI - Crystan OST

UFO: AI - Crystan OST

May 9, 2012 Music 3 comments

These are the tracks i composed for UFO: Alien Invasion. Some of them havn't made it into the release for various reasons - they're tagged as unused.

UFO: Alien Invasion 2.4

UFO: Alien Invasion 2.4

May 5, 2012 Full Version 0 comments

A dozen new maps to battle aliens Rescue soldiers in dropships shot down by aliens and retreat from battles New particle and sound effects for weapons...

UFO: Alien Invasion 2.3.1 MacOSX

UFO: Alien Invasion 2.3.1 MacOSX

Nov 30, 2010 Full Version 0 comments

UFO: Alien Invasion has released 2.3.1. This release is a bug fix for the stable 2.3 release and maintains compatibility for all saved games under 2.3...

UFO: Alien Invasion 2.3.1 Windows

UFO: Alien Invasion 2.3.1 Windows

Nov 30, 2010 Full Version 3 comments

UFO: Alien Invasion has released 2.3.1. This release is a bug fix for the stable 2.3 release and maintains compatibility for all saved games under 2.3...

UFO: Alien Invasion 2.3 Linux

UFO: Alien Invasion 2.3 Linux

Jun 18, 2010 Full Version 2 comments

The UFO:AI development team is proud to announce the release of UFO: Alien Invasion Version 2.3. Two years in the making, this version features loads...

UFO: Alien Invasion 2.3 MacOSX

UFO: Alien Invasion 2.3 MacOSX

Jun 18, 2010 Full Version 0 comments

The UFO:AI development team is proud to announce the release of UFO: Alien Invasion Version 2.3. Two years in the making, this version features loads...

Post comment Comments  (10 - 20 of 243)
watso
watso Dec 12 2013, 2:14pm says:

Im installed the game on ubuntu 13.10 but when i press play nothing happen.
Help pls! D=

+1 vote     reply to comment
bubb36
bubb36 Nov 20 2013, 5:07pm says:

Cannot get it to run on windows 7

+1 vote     reply to comment
Fafhred
Fafhred Oct 30 2013, 9:20am says:

I have tried this game a few days ago.

In the original commercial game, it was possible to make saves during tactical play (any land battles).
In the remake, the difficulty from the original game is maintained, BUT you cannot save there which effectively increases the difficulty by a large factor.
What it means is that when a drastic mishap occured (which does happen fairly frequently, true to the original on that), in the original game you could fall back on a save from a few turns before, while in this version you have to restart from landing in such case.

Complete non-starter for me, uninstalled until that critical issue is addressed.

-3 votes     reply to comment
SnakeTheFox
SnakeTheFox Feb 15 2014, 1:37am replied:

The nature of XCom to me is similar to that of dwarf fortress, where even losing is fun. I enjoy the level of difficulty personally, I find that when a game allows me to save whenever I want, I instinctively try to "savescum" to revert the misfortune that's befallen me, and in the process I end up learning the game slower and playing worse. I respect your opinion, but unfortunately you seem to be in the minority in that regard.

0 votes     reply to comment
Mossman180
Mossman180 Oct 11 2013, 2:54pm says:

Any idea for when the base attacks will be updated so you can lift aircraft and/or cut the power?
I'm just curious. :)

+1 vote     reply to comment
H-Hour
H-Hour Oct 12 2013, 4:42am replied:

It's planned for "the future", but it won't make it into 2.5. So... not soon.

+1 vote     reply to comment
FlashOne
FlashOne Oct 8 2013, 3:05pm says:

I've been playing this game for some time now and I have to say, it's one of the best "x-com like games" around right now. The Battlescape isn't as polished as the AAA X-Com remake, but at least the Geosphere part isn't as dumbed down.

A big thank you to the developers who created this game for the community and released it for free. Your work is highly appreciated :-)

+3 votes     reply to comment
EliteHunter39
EliteHunter39 Sep 29 2013, 11:45pm says:

Isn't this based on the original X-Com: UFO Defense?

+1 vote     reply to comment
H-Hour
H-Hour Sep 30 2013, 11:55am replied:

"UFO: Alien Invasion is a squad-based tactical strategy game in the tradition of the old X-COM PC games"

Ufoai.org

+2 votes     reply to comment
EliteHunter39
EliteHunter39 Oct 2 2013, 6:26am replied:

Ok..
Installing.

+1 vote     reply to comment
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UFO: Alien Invasion
Platforms
Windows, Mac, Linux, Android
Developer & Publisher
UFO: Alien Invasion Team
Engine
id Tech 2
Contact
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Official Page
Ufoai.org
Release Date
Released Dec 30, 2003
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Community Rating

Average

9.1

491 votes submitted.

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Ratings closed.

Highest Rated (18 agree) 10/10

great fun! worth downloading!

Nov 18 2010, 3:41pm by Dudok22

Style
Genre
Turn Based Strategy
Theme
Sci-Fi
Players
Single & Multiplayer
Project
Indie
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Last Update
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Watchers
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Files
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News
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Features
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Reviews
103