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 Use these to try the latest features or check if a bug is obsolete.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

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, Fri Oct 19 19:01:58 2018
fix item loading

SupSuper, Fri Oct 19 16:05:46 2018
Order is important

SupSuper, Fri Oct 19 02:34:41 2018
Clean up BattleItem saves

SupSuper, Fri Oct 19 01:28:33 2018
More warnings

SupSuper, Fri Oct 19 01:27:37 2018
Reduce build matrix

SupSuper, Fri Oct 19 00:17:27 2018
Fix crash if you save and reload during a multi-part mission, such that items recovered in one stage conflict with items spawned in the next stage, and if an explosion removes one of the conflicting items, causing a segmentation fault when the memory is cleaned up when the mission ends / reloads.

SupSuper, Thu Oct 18 06:27:41 2018
Fix support for replacing extraSprites

SupSuper, Thu Oct 18 06:24:26 2018
Clean up warnings

SupSuper, Sun Oct 14 01:53:04 2018
Clean up sound handling

SupSuper, Sun Oct 14 01:52:29 2018
Fix possible buffer overflow when loading raw surfaces.

SupSuper, Mon Oct 8 01:16:44 2018
Fix bad conversion of country label coordinates

SupSuper, Mon Oct 8 01:06:23 2018
Clean up maths!

warboy1982, Sun Oct 7 22:03:35 2018
fix sectoid psi strength

32h = 50

SupSuper, Sun Oct 7 05:53:21 2018
Fix typo in Xcom1 DOS sound loader

Daniel, Thu Oct 4 19:02:08 2018
Merge pull request #1199 from atlimit8/fix-soldier-with-salary-not-purchasable

Fix monthly costs display for soldier types with salary but not purchasable.
atlimit8, Sat Sep 29 06:20:12 2018
Fix monthly costs display for soldier types with salary but not purchasable.

Mac OS X
Maintained by Various

Check 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
2018-10-20 44f732b60 64-bit 32-bit
2018-10-19 030848517 64-bit 32-bit
2018-10-14 7d9cd996e 64-bit 32-bit
2018-10-08 13049d617 64-bit 32-bit
2018-10-05 5ae3d796f 64-bit 32-bit
2018-10-03 a04a0119a 64-bit 32-bit
2018-09-28 61ba9615c 64-bit 32-bit
2018-09-27 385a8e68c 64-bit 32-bit
2018-09-24 6b81936e2 64-bit 32-bit
2018-09-17 d37a02102 64-bit 32-bit
2018-09-15 6f50bac10 64-bit 32-bit
2018-09-11 50c2cb768 64-bit 32-bit
2018-09-10 50c2cb768 64-bit 32-bit
2018-08-18 a6d2d3249 64-bit 32-bit
2018-08-12 5105bcecb 64-bit 32-bit
2018-08-04 b1916e873 64-bit 32-bit
2018-07-31 2084a0f84 64-bit 32-bit
2018-07-29 f5e4ca9ff 64-bit 32-bit
2018-07-27 14757b2be 64-bit 32-bit
2018-07-24 fb1401e07 64-bit 32-bit
2018-07-22 ac1b8274b 64-bit 32-bit
2018-07-21 1a1fe3fc2 64-bit 32-bit
2018-07-20 c786ac126 64-bit 32-bit
2018-07-19 773fd1cd5 64-bit 32-bit
2018-07-18 e7d728fd8 64-bit 32-bit
2018-07-10 49119b216 64-bit 32-bit
2018-07-09 642c7bbbf 64-bit 32-bit
2018-07-07 9c71d43d6 64-bit 32-bit
2018-07-06 b31a99228 64-bit 32-bit
2018-06-23 582d81e36 64-bit 32-bit
2018-06-08 57a10ae13 64-bit 32-bit
2018-05-10 57a10ae13 64-bit 32-bit
2018-05-01 8d5957892 64-bit 32-bit
2018-04-28 30de9d2bb 64-bit 32-bit
2018-04-27 8c6284f08 64-bit 32-bit
2018-04-26 61caccdba 64-bit 32-bit
2018-04-24 1805ec99f 64-bit 32-bit
2018-04-23 ac7bd8de0 64-bit 32-bit
2018-04-10 80d8e9ff4 64-bit 32-bit
2018-04-09 245ce6a48 64-bit 32-bit
2018-03-28 3502bfecd 64-bit 32-bit
2018-03-21 7478b2987 64-bit 32-bit
2018-03-18 1b4c1c77e 64-bit 32-bit
2018-03-17 ea9ac4662 64-bit 32-bit
2018-03-11 330c21821 64-bit 32-bit
2018-03-10 d2394dd82 64-bit 32-bit
2018-03-09 5fda38dd5 64-bit 32-bit
2018-03-06 6fd360300 64-bit 32-bit
2018-03-05 f75f02e1a 64-bit 32-bit
2018-02-22 bbe2d9db0 64-bit 32-bit
2018-02-17 3969f48e3 64-bit 32-bit
2018-01-28 b14891626 64-bit 32-bit
2018-01-27 c3ea24466 64-bit 32-bit
2018-01-21 2eaaf484c 64-bit 32-bit
2018-01-19 92495e5f1 64-bit 32-bit
2018-01-18 8a82c9702 64-bit 32-bit
2018-01-07 0eb8d9cb4 64-bit 32-bit
2018-01-05 c3280c589 64-bit 32-bit