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Open Source UFO: Alien Invasion 2.5 Released

Posted by Guest, | Views: 5,085
After more than two years of development, the team behind UFO: Alien Invasion has finally released a new stable version of their open source tactics game.

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.

Release 2.5 brings next to more content such as weapons, enemies and new character models also some significant changes, namely a wounds and encumbrance system as well as some major rebalancing of weapons and changes to the tech tree in general. There was also quite some work done under the hood which improves now the rendering performance and enemy AI and much more.

A download link to the game, as well as a wiki and forum can be found on


  • New soldier models
  • Support more than 8 soldiers
  • Dozens of new soldier characters
  • All weapons rebalanced
  • Added the UFO-Gunboat
  • Wounds system
  • Switched translation system from wiki to UFO-script
  • Improved AI
  • Improved render speed
  • Implemented stun gas grenade
  • Three new alien races (Hovernet, Combat Hovernet and Combat Bloodspider)
  • Added remote camera support
  • Added mission briefing window
  • New soldier weapons: Encased Plasma Ammo, Hybrid RPG Ammo, Antimatter Bolter Ammo
  • Weight/encumbrance system
  • Soldier stats increase faster
  • Foliage support
  • Implement save game and team sharing via WebAPI
  • Fully Debian compliant licenses


  • Updated transfer screen
  • Updated research screen
  • Equip soldiers without assigning to an aircraft
  • Air combat rebalanced
  • Disassembly times and rewards rebalanced
  • Tech tree modified significantly
  • Number of UFOs dramatically reduced
  • Added memo system to inform players of key mechanics


  • Mumble support
  • Added Remote Console support to the initial multiplayer window
  • Added server window to change the number of soldiers and turn timer


  • +bridge supports more assembly variation and the crashed scout
  • +africa updated
  • +alienb got a new tile and a second possible layout
  • +village2 theme

Have many readers here played it? If so tell us what you think about it!
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The comments on this article are closed.
Imants 17 July 2014 at 6:14 pm UTC
I only found release for windows if they want me to compile it for Linux then no I hate to do those things
Robert 17 July 2014 at 6:41 pm UTC
ImantsI only found release for windows if they want me to compile it for Linux then no I hate to do those things

Don't worry. The new version will be available soon in (maybe unofficial) repositories for all the mayor distributions. I suppose they'll update the build available in Desura too.
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