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

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.


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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  (210 - 220 of 247)
Lupus_of_nox_noctis Dec 22 2010, 12:54am says:

Havnt played this in a while

+2 votes     reply to comment
Michael_sama Dec 15 2010, 8:10pm says:

I just wanted to put this out there, but has anyone noticed how useless the rocket launcher is?

Riot shotgun (assault type), sniper rifle, and grenade launcher (love the plasma upgrade) are about the only weapons that can be used throughout the game. The other weapons were good until lasers replaced them. The rocket launcher was fail from the beginning. Is there some kind of method that I'm not using it correctly? I always miss (even in almost point blank range), so it seems rather wasteful when you can give the heavy weapon person the rail type gun after it's researched.

0 votes     reply to comment
ILOVEZOMBIESIDO Feb 25 2011, 5:17am replied:

hello micheal_sama,
first fay i played this, i had a rocket luancher in my squad, there were 4 of us, we lost 2 soldiers, 3 aliens were crowded against a wall. i used the rocket and it missed them. BUT, IT HIT THE WALL AND SPLASH DAMAGE KILLED ALL 3 ALIENS! never underestimate its powers my friend. :D

+2 votes     reply to comment
noert Jan 9 2011, 10:55am replied:

It is not useless, absolutely not
Excellent long-range high-damage blast radius sniper weapon
Worst thing bout it it's u cant use small arms with it.. makes it kinda vulnerable in close combat and in small spaces

+4 votes     reply to comment
TheGameSquid Dec 2 2010, 10:23am says:

It's good to see this fantastic game on Desura. Congratulations!

+2 votes     reply to comment
Kai-Li Nov 30 2010, 12:49pm says:

Welcome to Desura guys.

+2 votes     reply to comment
Craftan99 Oct 10 2010, 12:31pm says:

A Question, Can the aliens attack your base? If so that would be great :D

+2 votes     reply to comment
madtoaster Dec 1 2010, 6:38am replied:

Yeah, totally! @Craftan99. The whole map is the design of your base, with some extra stuff ontop.

+2 votes     reply to comment
Deloused Oct 2 2010, 5:59pm says:

it feels just like the '99 game, add an extensive Lore and storyline, plenty of stuff to read in UFOpeadia.

I actually played it till my eyes bled.

+2 votes     reply to comment
Raphiell Jul 6 2010, 9:41pm says:

my game crashes/freezes every-time i try to go into fighting area (eg: crash site, farm) anybody know anything about this?

+1 vote     reply to comment
filiepgroh Jul 16 2010, 1:43pm replied:

Same happens here, but only when I'm playing on full-screen, try playing in window mode and also, turning on compatibility mode might help.

+1 vote     reply to comment
magiguy101 Dec 13 2010, 12:43pm replied:

Exactly the same, only crashes on full-screen mode, but windowed mode can't be changed, so I cant use the edge-of-screen scroll... bugfix, patch needed

+2 votes     reply to comment
mattn Creator
mattn Dec 19 2010, 4:48am replied:

you can edit your config.cfg (see Ufoai.ninex.info for the path) and change the cvar r_fullscreen to 1

it would be nice if you could make bugreports about found issues on our tracker at Sourceforge.net which info about the windows version you are using, the architecture and so on. attach your ufoconsole.log, every little piece of info might help to fix those issues. thanks for your help

+2 votes   reply to comment
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UFO: Alien Invasion
Windows, Mac, Linux, Android
Developer & Publisher
UFO: Alien Invasion Team
id Tech 2
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Release Date
Released Dec 30, 2003
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494 votes submitted.

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Highest Rated (18 agree) 10/10

great fun! worth downloading!

Nov 18 2010, 3:41pm by Dudok22

Turn Based Strategy
Single & Multiplayer

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