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UFO: Alien Invasion Team
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Turn Based Strategy

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It is the year 2084. You control a secret organization charged with defending Earth from a brutal alien enemy. Build up your bases, prepare your soldiers, and lead them to victory in turn-based tactical combat.

Freedom Friday - Jul 25


Freedom Friday - Jul 25

Defender Story, Heavy Fortress, OpenRA and UFO: Alien Invasion work together and get 1st place at the county fare for best pie, a freedom pie!

Jul 25, 2014 News



A new game I'm working on is now available for Android.

Nov 10, 2013 News
Important update to saved games


Important update to saved games

We've made an important change to the directory where save games are stored. If you play our latest development version (2.5-dev), read more to find out how to preserve your saves.

Sep 5, 2013 News
Monthly development report, August 2013


Monthly development report, August 2013

This month saw a burst of activity, with bug fixes across all major systems, dramatic balancing changes to soldier advancement, improvements to the alien AI, new multiplayer features and more work on...

Sep 2, 2013 News
Working towards an official Debian release


Working towards an official Debian release

Are you a Debian/Ubuntu/Mint gamer? Help apo, a member of the Debian Games Team, by testing the latest packages.

Aug 21, 2013 News
Comments  (0 - 10 of 245)
.BeastyBoy. Sep 1 2014, 2:40pm said:

On the Web Page the game is version 2.5 why is here only the old version?

+3 votes     reply to
Tonystarman0 Jun 11 2014, 4:18am said:

Speaking of ****** up "Simple Campaign" There like no attack or alarts on my map area! just blank nothing! well, for few minute I lost because my dept is getting too low like minus!

I was thinking that was a bug but I couldn't tell if it is or not!

-1 votes     reply to
Tonystarman0 Jun 11 2014, 4:21am replied:

Anyway, I want to see if this screwed up again in Simple campaign! it did screw up the first time but I want to see if it did it again then I have to report this as bug or glitch!

(This game need little more alien spawn in Simple campaign!)

-1 votes     reply to
trilobite23 May 17 2014, 3:55pm said:

this is great xcom would be proud

+2 votes     reply to
paul6334 Mar 23 2014, 7:01pm said:

You should make it so that if there is a BIG infestation, you can evac citizens, and then hit the area with missiles and/or guns.

0 votes     reply to
elias02 Mar 6 2014, 1:43pm said:

got to admit, the video at the top didn't tell me anything, just that there is an awesome globe in the game.

+4 votes     reply to
UrielCorinthian Aug 9 2014, 1:05pm replied:

Indeed - possibly the least informative game video I've ever seen...

+1 vote     reply to
trilobite23 Jun 4 2014, 2:38am replied:

well at least its free to play so you can see the rest ;) though i agree the trailer is kind of lacking

+1 vote     reply to
Mossman180 Mar 9 2014, 10:47pm replied:

It's worth getting. If you like this type of game, I mean.

+1 vote     reply to
SavageCroc Feb 26 2014, 6:57pm said:

I am having a bug problem with this game, and not really good at reporting them, but during campaign on the battle area, as the encounters get longer, when I hit end turn, it will go back to the geo-sphere right before accepting the mission I was just cuurently playing.

+1 vote     reply to
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Latest tweets from @ufoai
RT @MartinGerhardy: Just submitted #CavePacker for being published on @Desura. T.co #gamedev #indiedev #OpenSource #googlNov 9 2014, 3:03am
RT @MartinGerhardy: Posting #CaveExpress death screen art from time to time now. #gamedev #indiedev T.co T.coJul 9 2014, 6:00am
RT @MartinGerhardy: Yet another death screen of #CaveExpress. T.co #gamedev #indiedev #indiegame T.co Jul 9 2014, 5:59am
RT @MartinGerhardy: @ufoai version 2.5 is released. Check out our news section on T.co and please spread the word. #gameJun 28 2014, 7:12am
RT @MartinGerhardy: @ufoai from now on is only using @debian compliant licenses.The last files were replaced today.Just took a few years to… Jun 1 2014, 1:49pm
RT @MartinGerhardy: Just released version 1.6 of #caveexpress to the android play store. I hope people like it. If not, please let me know … May 2 2014, 8:59am
@GillesCornu @MartinGerhardy Thanks,that is really awesome.I will giveit a try for sure.Makes things a lot easier for travis and #androiddev May 1 2014, 1:41pm
RT @MartinGerhardy: Just posted the april monthly for @ufoai. Some map screenshots included. Also working on a new version of #caveexpress.… May 1 2014, 7:58am
RT @MartinGerhardy: #CaveExpress is now on github at T.co Apr 1 2014, 5:54am
RT @MartinGerhardy: Just published a new blog entry about #libsimpleai at T.co Apr 1 2014, 5:54am
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