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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.

  • Dentist office
  • Dentist office
  • Village Revamp
  • Village Revamp
  • Village Revamp
  • Improving our village maps
  • Female heads



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
Monthly update for July, 2013


Monthly update for July, 2013

Woops. I forgot to post the June update. Here's the development update for July!

Aug 6, 2013 News
Comments  (0 - 10 of 239)
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.

+1 vote     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.

+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
iamnan1 Jan 1 2014, 7:10pm said:

Any plans to move from 2.3.1 amd64 for linux to later versions here on desura anytime soon? I only see 2.4 and thats for windows. Yet in my repos for Fedora I see 2.4.1. I like the idea of showing support via desura to know us Linux users are out here but Im perfectly fine with just using the repo download or using the source directly. Whatever the case, just want to also again reiterate, great game, great work, please keep it up and if you ever decide to look for funding you got it from me.

+2 votes     reply to
iamnan1 Jan 1 2014, 8:14pm replied:

Perhaps one thing to note is the repos version of 2.4.1, for me, no text from intro or mail, etc appears. For example, the introduction text shows as "intro_sentence_1" 2 3 etc. Mail is blank with blank icons and so forth.

+1 vote     reply to
watso Dec 12 2013, 2:14pm said:

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

+1 vote     reply to
iamnan1 Jan 1 2014, 7:13pm replied:

Im in Fedora but make sure you have all your SDL packages insatlled. Also try running it from the terminal and see what error message it gives you. That should provide a good idea of what you might be missing.

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

Cannot get it to run on windows 7

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

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.

-1 votes     reply to
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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
RT @MartinGerhardy: Just posted the monthly for #ufoai @ufoai at T.co Apr 1 2014, 5:54am
RT @MartinGerhardy: CaveExpress is available for free at T.co for one week. Get it today! Feb 21 2014, 4:06am
Just created some new blog entries on T.co Feb 16 2014, 2:30pm
RT @MartinGerhardy: Just posted the monthly of @ufoai - check it out at T.co There is also a new version of #CaveExpressFeb 15 2014, 6:24am
RT @MartinGerhardy: New versions of CaveExpress are currently uploaded to @desura and the google play store. Nov 18 2013, 5:23am
RT @MartinGerhardy: CaveExpress is now on facebook T.co Nov 16 2013, 7:17am
RT @MartinGerhardy: Finally version 1.1 of CaveExpress is released on @Desura. Android versions will be updated soon... and I'm working on … Nov 16 2013, 7:15am
Congrats to @play0ad for raising $33,000 in their crowdfunding campaign. A great precedent for the world of open-source gaming. Oct 21 2013, 4:59am
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