OpenXcom requires a vanilla version of the original UFO: Enemy Unknown / X-COM: UFO Defense (any edition) with the latest patch. It is not compatible with other games in the X-COM series. If you don’t own a copy, you can buy it from one of these retailers.

Do not use modded versions of X-COM, as they may be incompatible with OpenXcom.

Check the Installation documentation for more details.



These builds are automatically generated from the codebase, so they have the latest fixes and updates as well as the latest bugs. Use these to try the latest features or check if a bug is obsolete. Do not install these on top of 1.0!

Windows Mac OS X Linux Ubuntu / Mint

Maintained by SupSuper

The EXE version has an installer while the ZIP version is standalone. For more details see the FAQ. Latest version is at the top and includes all previous versions:

warboy1982, Thu Nov 9 04:37:23 2017
make gas cannon ammo take up storage space

warboy1982, Wed Nov 8 15:04:29 2017
amend reaction fire behaviour

allow xcom soldiers to spin and shoot at aggressors

warboy1982, Thu Nov 2 11:30:10 2017
fix ufo cutscenes

guess this enables two stage ufos too, in theory

warboy1982, Thu Nov 2 01:05:56 2017
corpse recovery code cleanup

warboy1982, Wed Nov 1 12:50:36 2017
set interceptionOrder more correctly

numbers were getting messy for some reason,
not sure why tallying took place in ConfirmDestinationState

warboy1982, Wed Nov 1 12:49:15 2017
send craft to last known position. not last projected meeting point

warboy1982, Wed Nov 1 11:33:02 2017
fix explosives hitting things on stairs or slopes

warboy1982, Wed Nov 1 10:47:56 2017
fix corpse scoring

warboy1982, Wed Nov 1 10:10:34 2017
open dogfights as soon as they reach the coastline

introduced this bug as of a few days ago as a result of another fix

warboy1982, Wed Nov 1 10:08:26 2017
disable geoscape buttons during dogfight zoom

fix music weirdness

warboy1982, Wed Nov 1 06:22:39 2017
fix extra damage from explosive shotgun rounds

warboy1982, Wed Nov 1 06:15:09 2017
pathfinder, pathfinder, find me a path

mark it out right,
don't screw up the math.
try as you might, where there's stairs... failure's prone,
so find me a path,
or we're boned.

warboy1982, Tue Oct 31 07:45:06 2017
fix small sprite error with TFTD tanks

turret too high, gets drawn over when on stairs

warboy1982, Mon Oct 30 22:48:49 2017
weapons need ammo

warboy1982, Sun Oct 29 19:07:10 2017
fix fuel consumption error (maybe more)

time shouldn't pass while we're zooming in or out from a dogfight

warboy1982, Sun Oct 29 18:03:31 2017
fix floating fire flaw

warboy1982, Sun Oct 29 17:02:02 2017
fix game over on abort for final missions

warboy1982, Fri Oct 27 20:08:19 2017
gravity falls apart

hello darkness my old friend...

Mac OS X
Maintained by Various

Check here for binary builds or here for app builds.

Maintained by Krzysztof “Knapsu” Knapik

Download AppImage file, make it executable, and run. No need to install.
You can read more about the AppImage format here:

DateGit CommitDownloads
2017-11-09 803ca40a6 64-bit 32-bit
2017-11-08 aaf8cf67f 64-bit 32-bit
2017-11-02 132671d50 64-bit 32-bit
2017-11-01 d0f8b1217 64-bit 32-bit
2017-10-30 d22bd4492 64-bit 32-bit
2017-10-29 6e34a5153 64-bit 32-bit
2017-10-27 74d1c8ae5 64-bit 32-bit
2017-10-23 60237ce3f 64-bit 32-bit
2017-10-22 035fd0ffc 64-bit 32-bit
2017-10-21 76985f8b0 64-bit 32-bit
2017-10-18 30197415d 64-bit 32-bit
2017-10-15 522fb0a02 64-bit 32-bit
2017-09-20 12fbabe5a 64-bit 32-bit
2017-09-16 aa640a144 64-bit 32-bit
2017-09-09 7bc4c3ecf 64-bit 32-bit
2017-08-27 e05c95959 64-bit 32-bit
2017-08-26 087f59681 64-bit 32-bit
2017-08-24 81f1bc061 64-bit 32-bit
2017-08-23 f29f48572 64-bit 32-bit
2017-08-22 f03f6d180 64-bit 32-bit
2017-08-21 945a7d62f 64-bit 32-bit
2017-08-12 f877b16a2 64-bit 32-bit
2017-08-11 3c2b453e5 64-bit 32-bit
2017-08-10 fa0ae9dcd 64-bit 32-bit
2017-08-01 26d7671e1 64-bit 32-bit
2017-07-18 6cc32bcdc 64-bit 32-bit
2017-07-16 aacaf563e 64-bit 32-bit
2017-07-13 7127fad42 64-bit 32-bit
2017-07-11 8fb1cb90b 64-bit 32-bit

Ubuntu / Mint
Maintained by Krzysztof “Knapsu” Knapik

Available on a dedicated PPA repository. Please do the following in a terminal:

# sudo add-apt-repository ppa:knapsu/openxcom-beta
# sudo apt-get update
# sudo apt-get install openxcom