- Strategy
- Turn-based strategy (TBS)
- Tactical
Game
OpenXcom
Open-source clone of the original UFO: Enemy Unknown / X-Com: UFO Defense by Microprose.
About OpenXcom
- Released
- June 2014
- Platforms
- Linux · PC (Microsoft Windows) · Mac
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
- Mods indexed
- 434
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
Most downloaded
Measured from the source's own counts, summed across every release.
- The X-Com FilesGrow X-Com from its humble beginnings to the global military force we all know and love!265.3k downloads
- 40kThis is a Warhammer 40k total conversion for OpenXcom, based on an earlier space marine mod by Ryskeliini. As Force Commander for the Imperium of Man on a planet beseiged by Chaos, you must find a way to end the Warp Storm and purge your world!114.8k downloads
- Final Mod PackA multi-level megamod, composed of various community mods which are balanced against one another and topped with a lot of extra original content.88.0k downloads
- OpenXcom Extended (OXCE)OXCE is a younger brother of OpenXcom.81.1k downloads
- The World of (Terrifying) SilenceExpansion of original TFTD game, explaining the origin of TFTD technologies such as flying submarines, and adding some depth in a game.55.2k downloads
- 40k ROSIGMAROSIGMA is a collaboration of several contributors combining ROSE and IGMA for the 40k mod. ROSIGMA expands the 40k mod with additional assets for the Sisters of Battle, the Imperial Guard and possibly more factions as well as for the enemies.42.8k downloads
- X-PiratezThe year is 2601. The Earth has been long conquered by aliens. You run a gang of mutant pirates. Rob aliens and their human proxies for fun, profit and power. But that is only just a beginning... (Won't be updated here anymore)38.1k downloads
- Xross's XCOM Visual UpgradeUpgrades core graphics in XCOM1 and simply updates UIs and adds character shadows in TFTD. Enjoy the XCOM graphic remake! Current State: Gold20.2k downloads
- The Endless WarHuge resource mine, available for free!17.2k downloads
- X-Com Files Additions 0.8.1f Anarchic AnachronismAn expansion for the great X-Com Files by Solarius Scorch, more weapons, light HWP's, more armors and new missions!17.0k downloads
- Reaver's Faithful MegamodThis mod preserves the original feel of the game while making sweeping changes to balance and adding content to fill in several holes in the original game. It is better iterated and far better balanced than the true vanilla experience.15.2k downloads
- XCOM Area 51And we're back. Mod has been updated to work with the latest OXCE 8.2.0 (required). More changes will come in the next days to remove unauthorized contents.14.2k downloads
- OPENXCOM - TRAINEROPENXCOM - TRAINER is a savegame-editor for openxcom and partial openxcom extended / "The X - Com Files" / XPiratez / 40k / UNEXCOM13.7k downloads
- Reaver's Harmony MegamodA massive expansion to X-Com which stays true to the original spirit of the game, yet greatly increases the amount of content, options, and length of the game.13.0k downloads
- UNEXCOMAn international organization, the United Nations Extraterrestrial Combat Command fights the alien invasion in the middle of the Cold War. Join them in its crusade to defend Earth!11.2k downloads
- X-Com: From the AshesX-Com's initiative failed, alien agents infiltrated Council of Funding Nations. You face a threat of total extermination, recover from the crushing blow, and find a way to continue the fight against aliens in a new setting.11.1k downloads
- Vigilo ConfidoA demake of the remakes - This partial conversion includes the complete EU2012 story line and lets you play through it using OpenXcom. It also adds an extensive class and skill system, thus completely changing the experience.9.7k downloads
- COMMUNITY MAP PACK - CMPThis map pack is a collection of assets from many OXC modders who have agreed to share their works under the CC-BY-NC licence.9.3k downloads
- Equal Terms 2.0This mod adds and replaces base gunpowder weapons and allows for research of a variety of new weapons for both the laser and plasma weapon tiers.9.1k downloads
- XCOM MultimodThis is an integration of some other mods and parts, alongside to changes of game mechanics and graphic rework of the original XCOM ufo defense game, including new weapons, aliens, effects, xcom base maps and much more.8.9k downloads
- UFO: Cydonia's Fall OGG MusicRemastered soundtrack of the X-COM: UFO Defense music in OGG format.8.7k downloads
- Natasha Morozova join (for X-Com Files)Submod for mod X-Com Files. Natasha Morozova and other characters join xcom. Some of them have special abilities or other traits.7.0k downloads
- Reach: The Fall, a Halo modA total conversion mod for OpenXcom set on the Fall of Reach, one of the last battles of the Human-Covenant War, from the Halo universe. Focused on a joint SPARTAN-III/Marine/Army team tasked to contain the Covenant.6.9k downloads
- Brutal-OXCEBased on OXCE and compatible with all mods that are compatible with OXCE. Adds an optional new and much scarier AI to the game. The units of the AI act like a team with shared vision and the ability to wait for other units to act first.6.8k downloads
Browse all 434 OpenXcom mods Sortable by downloads, rating and date.
More strategy games see all
Why OpenXcom mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host OpenXcom mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.