UNEXCOM for OpenXcom

Released (updated ago). Ranked 41 of 153 with 1,949 (0 today) downloads

Created by efrenespartano (mod ID: 199)


United Nations Extraterrestrial Combat Command

Inventorum Development Team
A Cold War themed mod by the Inventorum Development Team

  • efrenespartano: llead sprite & ruleset designer
  • Badfella: sprite designer
  • DarkDust: support debugging
  • Dauntless1942: sprite creator
  • Ikhanad: support debugging & military history support
  • Luke83: map specialist
  • Noah183: main debugging
  • Tingcat: sprite creator
  • The Reaver of Darkness: balance specialist
  • Thunder_andr: sprite creator & main military history advisor
  • wolwerin: sprite creator


This mod is located chronologically right in the middle of the Cold War, almost at the end of the Vietnam War. There will be many pages of UFOpedia explaining the background of the story, as well as the course of the war. Now you can ask the World's Superpowers like NATO and USSR for support, provided by new guns, tanks and crafts.

*New Weapons (for the three Tiers, now Plasma are a little more difficult, so you can stick to Ballistic/Laser longer)

*New Aircrafts/Craft Weapons (real fighters, bombers, missiles and guns)

*New Enemies (three new alien races, more to come)

*New Armor

*New Storyline (you are not a super secret organization anymore)

This mod is a compilation, not all the work is mine. I would call it a "franken-mod", because it is made of many different mods, united with glue, love and some things that I have done myself. This compilation is playable from beginning to end, but there are still many of my ideas to be implemented. It's still WIP, so expect to find some missing things/items. Your feedback is useful.

This is currently version 0.7.5. Now we have a new starting faction, the Terrorists. They will try to cause disorder and panic among the population, including new UFOs (or more accurately, planes) more realistic to what an enemy human faction would use. Two new missions related to the Special Forces, where you must neutralize terrorist attacks. In addition, a new Tier of craft weapons and two new advanced aircraft. New weapons to be built on the base and two new grenades are included! In the next versions, there will be significant changes in the Laser weapons, as well as more weapons and new missions!

Hear some good songs while chasing hostiles in the jungle

Join the United Nations Extraterrestrial Combat Command on social media!

UNEXCOM on Instagram!

Join the UNEXCOM channel in the IDT server! Try the newest stuff and get updates before anyone else!

Follow our brother in arms Dauntless1942, a very skilled artist working together with the IDT making exclusive art for UNEXCOM


First you need to get a legal copy of Xcom: UFO Defense. You can get it at Steam or :) Download the latest OpenXcom Extended (OXCE) version here, available for PC, Android, macOS and iOS. Put your original Xcom data inside /UFO folder


- Open your "user" folder
- Copy the entire UNEXCOM zip file to the "/mods" folder. You can choose to unzip it or just move the zipped file.
- Enable the mod from the Mods option on the main menu.
(Instructions by Luke83)

- Open your "openxcom" folder inside the root of your Android device,
- Copy the entire UNEXCOM zip file to the "/mods" folder, You can choose to unzip it or just move the zipped file.
- Enable the mod from the Mods option on the main menu.

The original forum where you can ask questions, provide feedback and even make suggestions is located here.



Air combat is a very important thing now, inspired by Air Combat Rebalanced and Tech-Comm. Hangars can now host 2 crafts. There is a wide variety of aircraft and craft weapons of the time (and will come more, as well as a redesigned tech tree) It implements the HK features, a great addition made by Meridian. So expect to face UFOs actively trying to intercept your aircraft. You probably lose a lot of aircraft soon, that's why they will be somewhat cheaper. Also, you now can forget the ground radars. They are obsolete, actually I remove Large Radar and set the radarChance of the Small to 5%, just to mark the average combat range of your starting planes. Now you can (and you should) launch satellites to search for enemy UFOs and Bases. Be careful, they are reaaaally slow and HKs ate them for lunch.


Hatred just a tool the aggressors to control
Into the jungle's depth, into the desert storm
Caught between legions of hate
Caught beneath malefic eyes of fate

Ground combat is another important part. You will use realistic weapons of the time, such as rifles M16, AKM, LMG like M60 and Bren, snipers like XM21 and Dragunov among others. Each major power of the Cold War will supply you with unique tanks, weapons and equipment, you can choose to stick to the reliable Soviet guns or try the advanced NATO weaponry.

Forget the outdated HWP, now you will be in charge of an M551 Sheridan, a BMD-1 IFV or a FV701 Ferret SC, light tanks that can really be transported on an airplane.
There are new races (made by Solarius Scorch) and their weapons are now much more alien (drawn by XOPs), so the combat is more enjoyable.

Credits by name:

*Alex_D: UH-1 Huey, Mi-24 Hind maps
*ahnyoungjune: bug hunter
*alinare: BMD-1 & Laser Tank sprites
*Andr: M12 Beretta, M72 LAW, FN MAG, XM117 (and variants), M16A1 (and variants) 9mm Pistol x20 Mag sprite, F-104S Starfighter & MiG-21 sprite, Remington Combat Shotgun sprites, plus ideas and historical/technical advice
*Arpia: SCOUTCAR (Ferret AC) sprites and codes
*Badfella: Mercenary & Special Forces artwork, plus ideas.
*Barabas: bug hunter
*Blood Angel Tactical Marine: bug hunter.
*boodman123726: XCOM 2 Music Pack
*bulletdesigner: Old Pilots graphics from 40k mod (now unused), COPTER map (Huey placeholder, now unused), Improved Maps terrains
*cubick2k: bug hunter
*Cupon4uk: bug hunter
*danielpembrink: bug hunter
*DarkDust: bug hunter
*Dauntless1942: new USA/NATO/USSR Laser weapons, new UNEXCOM logo
*Dioxine: Original Double-barreled shotgun (now unused), M79 Thumper
*efrenespartano: main ruleset and sprite creation, lead designer
*Finnik: Astronaut sprites
*Fox105iwsp: original UN Combat Uniform and XM-72 Combat Armor sprites
*garretrgang: bug hunter
*Hans Woofington: bug hunter
*hellrazor: Expanded Terror and Skystriker (C-130 Hercules placeholder, now unused)
*Hobbes: Terrain Mod (now unused), Tech-Comm HKs, ruleset reference.
*IgnisAbentorn: bug hunter
*Ikhanad: FN FSC sprites, plus ideas.
*Internet: UFOPedia images, further artwork reference
*Istrebitel: craft weapon reference codes
*KingMob4313: Plasma & Laser ruleset and sprites from Equal Terms
*Meridian: modding help on the forums, OXCE dev
*Mitra Lightbringer: bug hunter
*Noah193: bug hunter, plus debugging and ideas
*Luke83: overall Terrain & Map support
*Pvt.Dropleaf: bug hunter
*Ryskeliini: Grenade Launcher (now unused)
*StormRangerX: bug hunter
*SG_Barton: bug hunter
*Solarius Scorch: RecycledAlienCollection, Alien Armory Expanded, Celebrate Diversity, original XM21, FN FAL, old M16, old M60 sprites (now unused), ruleset reference, Farmer NPCs sprites
*Tal'Raziid: bug hunter
*ThatDude: JustRussia AK original weapons (now adapted)
*The Reaver of Darkness: overall balance support, LIGHTNIA mapset, plus ideas
*theemperorofmankind: bug hunter
*Tingcat: Terrorists Paperdolls
*Valmont and his girlfriend: bug hunters
*Warboy1982: Shotgun firing sound
*XOps: Alien Plasma Weapons
*xover88: XCOM 2012 Music
*Yataka Shimaoka: bug hunter
*wolwerin: Needle Weapons, Tesla Weapons, sprites and sounds, plus debugging support
*Zane: original Delta sprites
*zaphnath: bug hunter


OpenXcom Extended (OXCE)


unexcom_v0.7.7_terrorist_takedown.zip71.29mbv0.7.7 Terrorist Takedown

unexcom_v0.7.6_terrorist_takedown.zip70.94mbv0.7.6 Terrorist Takedown

unexcom_v0.7.5_terrorist_takedown.1.zip70.84mbv0.7.5.1 Terrorist Takedown

unexcom_v0.7.4.1_vendetta_burns_inside.zip71.28mbv0.7.4.1 Vendetta Burns Inside

unexcom_v0.7.4_vendetta_burns_inside.zip71.26mbv0.7.4 Vendetta Burns Inside

unexcom_v0.7.3_vendetta_burns_inside.zip70.35mbv0.7.3 Vendetta Burns Inside

unexcom_v0.7.2_vendetta_burns_inside.zip70.34mbv0.7.2 Vendetta Burns Inside






Join the community or sign in with your gaming account to join the conversation:

cubik2k @cubik2k

Second error with mod v0.7.5:
game crashing: "A fatal error has occurred: Map generator encountered an error: Craft (MapBlock: UH_1B_HUEY) could not be placed on the map."

cubik2k @cubik2k

v0.7.5 - error with locating soldiers in alien base mission. Soldiers stuck in walls. I fly to this mission by helicopter.

Pvt.Dropleaf @pvtdropleaf

I'm not sure if its appropriate to ask here, but what is the difference between OPENXCOM and OPENXCOM Extended? Is It superior to the regular nightlies and will the other mods I have work as well? My apologies.

efrenespartano @efrenespartano

Hi, @pvtdropleaf!

Not the right place, but dont worry, i'll explain you the differences:

OXCE offers brand new features for us, the modders, to implement. A lot, to be honest. For the players there is no big difference unless you use a mod that specifically uses Extended features (like this mod!). If not, you'll likely never notice the difference.

Most big mod uses OXCE. If you want to get the max experience, you should use it instead of the nightlies. Beware, there are some mods that definitely requires OpenXcom Extended to avoid crashes, due different ruleset conventions between both engines. Like this mod.

More info here!

Hope this helps

Pvt.Dropleaf @pvtdropleaf

This answered everything I needed to know thank you for being patient with me! super excited to play your mods. :)

spehsmehrines @spehsmehrines

[06-02-2020_23-22-53] [INFO] OpenXcom Version: 1.0 git 2020-01-29 10:31
[06-02-2020_23-22-53] [INFO] Platform: Windows
[06-02-2020_23-22-53] [INFO] Data folder is:
[06-02-2020_23-22-53] [INFO] Data search is:
[06-02-2020_23-22-53] [INFO] - C:\Users\spehs\Documents\OpenXcom\
[06-02-2020_23-22-53] [INFO] - D:\Games\OpenXcom
[06-02-2020_23-22-53] [INFO] - D:\Games\OpenXcom
[06-02-2020_23-22-53] [INFO] User folder is: C:\Users\spehs\Documents\OpenXcom\
[06-02-2020_23-22-53] [INFO] Config folder is: C:\Users\spehs\Documents\OpenXcom\
[06-02-2020_23-22-53] [INFO] Options loaded successfully.
[06-02-2020_23-22-53] [INFO] SDL initialized successfully.
[06-02-2020_23-22-53] [INFO] SDL_mixer initialized successfully.
[06-02-2020_23-22-53] [INFO] requested file not found: openxcom.png
[06-02-2020_23-22-53] [INFO] Detected locale: C
[06-02-2020_23-22-53] [INFO] Attempting to set display to 1920x1080x32...
[06-02-2020_23-22-54] [INFO] Display set to 1920x1080x32.
[06-02-2020_23-22-54] [INFO] Loading data...
[06-02-2020_23-22-54] [INFO] Scanning standard mods in 'standard'...
[06-02-2020_23-22-54] [INFO] Scanning user mods in 'C:\Users\spehs\Documents\OpenXcom\mods'...
[06-02-2020_23-22-54] [INFO] Mapping resource files...
[06-02-2020_23-22-54] [INFO] Resources files mapped successfully.
[06-02-2020_23-22-54] [INFO] Active mods:
[06-02-2020_23-22-54] [INFO] - xcom1 v1.0
[06-02-2020_23-22-54] [INFO] - Aliens_Pick_Up_Weapons v1.0
[06-02-2020_23-22-54] [INFO] - UFOextender_Gun_Melee v1.0
[06-02-2020_23-22-54] [INFO] - UFOextender_Psionic_Line_Of_Fire v1.0
[06-02-2020_23-22-54] [INFO] Loading rulesets...
[06-02-2020_23-22-54] [INFO] Loading fonts... Font.dat
[06-02-2020_23-22-54] [INFO] Data loaded successfully.
[06-02-2020_23-22-54] [INFO] Loading language...
[06-02-2020_23-22-54] [INFO] Language loaded successfully.
[06-02-2020_23-22-54] [INFO] OpenXcom started successfully!
[06-02-2020_23-22-54] [INFO] Playing flx, 320x200, 890 frames
[06-02-2020_23-22-55] [INFO] SDL_mixer initialized successfully.
[06-02-2020_23-22-56] [INFO] Scanning standard mods in 'standard'...
[06-02-2020_23-22-56] [INFO] Scanning user mods in 'C:\Users\spehs\Documents\OpenXcom\mods'...
[06-02-2020_23-23-01] [INFO] SDL_mixer initialized successfully.
[06-02-2020_23-23-01] [INFO] Loading data...
[06-02-2020_23-23-01] [INFO] Scanning standard mods in 'standard'...
[06-02-2020_23-23-01] [INFO] Scanning user mods in 'C:\Users\spehs\Documents\OpenXcom\mods'...
[06-02-2020_23-23-01] [INFO] Mapping resource files...
[06-02-2020_23-23-01] [INFO] Resources files mapped successfully.
[06-02-2020_23-23-01] [INFO] Active mods:
[06-02-2020_23-23-01] [INFO] - xcom1 v1.0
[06-02-2020_23-23-01] [INFO] - Aliens_Pick_Up_Weapons v1.0
[06-02-2020_23-23-01] [INFO] - UFOextender_Gun_Melee v1.0
[06-02-2020_23-23-01] [INFO] - UFOextender_Psionic_Line_Of_Fire v1.0
[06-02-2020_23-23-01] [INFO] - UNEXCOM v0.8
[06-02-2020_23-23-01] [INFO] Loading rulesets...
[06-02-2020_23-23-01] [WARN] disabling mod with invalid ruleset: UNEXCOM
[06-02-2020_23-23-01] [ERROR] failed to load 'UNEXCOM'; mod disabled
Weapon STR_M16_M203 has clip size 0 and no ammo defined. Please use 'clipSize: -1' for unlimited ammo, or allocate a compatibleAmmo item.

Haven't been able to run the mod. Any fix for this?

spehsmehrines @spehsmehrines

Didn't see the "requires OpenXCOM Extended", sorry

efrenespartano @efrenespartano

Not problem, pal. Let me know if you find any other issue!

theemperorofmankind @theemperorofmankind

also I love the cool IRA/ phoniex connexion look the terrorist have.

efrenespartano @efrenespartano

Hey! I'm glad you noticed it! It was hard to make a realistic "terrorist outfit" without messing around with real politiks. So, we went to make a design closer to BF Hardline criminals, but with some hints to IRA.

We might add a new Terrorist based on Phoenix Connection on the near future, thanks for the idea!

theemperorofmankind @theemperorofmankind

when you land your ufo in a rice field and you hear fortunate son playing through the trees.

efrenespartano @efrenespartano

It was at this moment Sectoid knew... He f*cked up.

ahnyoungjune @ahnyoungjune


efrenespartano @efrenespartano


You need to research STR_PERSONAL_ANTIGRAV, unlocked after making a Cyberdisk autopsy, researching both Alien Alloys and UFO Power Source. Then, you need to research Power Suit to get the Flying Armor.

ahnyoungjune @ahnyoungjune

[31-12-2019_17-20-53] [INFO] OpenXcom Version: Extended 6.2 (v2019-11-29)
[31-12-2019_17-20-53] [INFO] Platform: Windows 64 bit
[31-12-2019_17-20-53] [INFO] Data folder is:
[31-12-2019_17-20-53] [INFO] Data search is:
[31-12-2019_17-20-53] [INFO] - C:/Users/john/Documents/OpenXcom/
[31-12-2019_17-20-53] [INFO] - C:/Users/john/Downloads/openxcom/
[31-12-2019_17-20-53] [INFO] User folder is: C:/Users/john/Downloads/openxcom/user/
[31-12-2019_17-20-53] [INFO] Config folder is: C:/Users/john/Downloads/openxcom/user/
[31-12-2019_17-20-53] [INFO] Options loaded successfully.
[31-12-2019_17-20-53] [INFO] SDL initialized successfully.
[31-12-2019_17-20-54] [INFO] SDL_mixer initialized successfully.
[31-12-2019_17-20-54] [INFO] Attempted locale:
[31-12-2019_17-20-54] [INFO] Detected locale: C
[31-12-2019_17-20-54] [INFO] Attempting to set display to 1600x900x32...
[31-12-2019_17-20-54] [INFO] Display set to 1600x900x32.
[31-12-2019_17-20-54] [INFO] Loading data...
[31-12-2019_17-20-54] [INFO] Scanning standard mods in ''...
[31-12-2019_17-20-54] [INFO] Scanning user mods in 'C:/Users/john/Downloads/openxcom/user/'...
[31-12-2019_17-20-54] [WARN] scanModDir('C:/Users/john/Downloads/openxcom/user/', 'mods'): No metadata.yml in UNITS, skipping.
[31-12-2019_17-20-54] [WARN] scanModDir('C:/Users/john/Downloads/openxcom/user/', 'mods'): No metadata.yml in UFOINTRO, skipping.
[31-12-2019_17-20-54] [WARN] scanModDir('C:/Users/john/Downloads/openxcom/user/', 'mods'): No metadata.yml in UFOGRAPH, skipping.
[31-12-2019_17-20-54] [WARN] scanModDir('C:/Users/john/Downloads/openxcom/user/', 'mods'): No metadata.yml in TERRAIN, skipping.
[31-12-2019_17-20-54] [WARN] scanModDir('C:/Users/john/Downloads/openxcom/user/', 'mods'): No metadata.yml in ROUTES, skipping.
[31-12-2019_17-20-54] [WARN] scanModDir('C:/Users/john/Downloads/openxcom/user/', 'mods'): No metadata.yml in MAPS, skipping.
[31-12-2019_17-20-54] [WARN] scanModDir('C:/Users/john/Downloads/openxcom/user/', 'mods'): No metadata.yml in GEOGRAPH, skipping.
[31-12-2019_17-20-54] [WARN] scanModDir('C:/Users/john/Downloads/openxcom/user/', 'mods'): No metadata.yml in GEODATA, skipping.
[31-12-2019_17-20-54] [INFO] Active mods:
[31-12-2019_17-20-54] [INFO] - xcom1 v1.0
[31-12-2019_17-20-54] [INFO] - OpenXCom_Unlimited_Waypoints v1.0
[31-12-2019_17-20-54] [INFO] - PSX_Static_Cydonia_Map v1.0
[31-12-2019_17-20-54] [INFO] - UFOextender_Gun_Melee v1.0
[31-12-2019_17-20-54] [INFO] - UFOextender_Psionic_Line_Of_Fire v1.0
[31-12-2019_17-20-54] [INFO] - UFOextender_Starting_Avalanches v1.0
[31-12-2019_17-20-54] [INFO] - UNEXCOM v0.7.4.1
[31-12-2019_17-20-54] [INFO] - XcomUtil_Always_Daytime v1.0
[31-12-2019_17-20-54] [INFO] - XcomUtil_High_Explosive_Damage v1.0
[31-12-2019_17-20-54] [INFO] - XcomUtil_Improved_Ground_Tanks v1.0
[31-12-2019_17-20-54] [INFO] - XcomUtil_Improved_Heavy_Laser v1.0
[31-12-2019_17-20-54] [INFO] - XcomUtil_No_Psionics v1.0
[31-12-2019_17-20-54] [INFO] - XcomUtil_Pistol_Auto_Shot v1.0
[31-12-2019_17-20-54] [INFO] - XcomUtil_Starting_Improved_Base v1.0
[31-12-2019_17-20-54] [INFO] - XcomUtil_Statstrings v1.0
[31-12-2019_17-20-54] [INFO] - AvengerKom v1.0
[31-12-2019_17-20-54] [INFO] - Building_Mod_Pack v1.51
[31-12-2019_17-20-54] [INFO] - Energy Rifle v1.1
[31-12-2019_17-20-54] [INFO] - Recruitment Office v0.85 Beta
[31-12-2019_17-20-54] [INFO] - extra_explosions v1.0
[31-12-2019_17-20-54] [INFO] - support-drones v1.0
[31-12-2019_17-20-54] [INFO] - ufo-vanilla-variants v1.3
[31-12-2019_17-20-54] [INFO] Loading rulesets...
[31-12-2019_17-20-56] [ERROR] Error processing 'STR_DEPLOYED_MIND_SHIELD' in research: Unknown research 'STR_MIND_SHIELD'

how to solve it?

efrenespartano @efrenespartano

DEPLOYED_MIND_SHIELD is not on UNEXCOM, but on Building_Mod_Pack, by Biggieboy! You should ask him for support on this particular issue

ahnyoungjune @ahnyoungjune

really amazing mod thanks for this mod
but i got crash when alien attack my base
how to solve?

efrenespartano @efrenespartano

Hi, ahnyoungjune!

The issue is because some partially implemented feature. To disable it, you need to open the "vars_UNEXCOM.rul" file, located inside /Ruleset/ folder.
Delete the line "baseDefenseMapFromLocation: 1".

That will solve the issue.

Barabas @barabas

I have some suggestions.
Let’s add to all top tier crafts (Firestorm, Lighting, Avenger) slots for auxiliary devices (craft armor, targeting pod, etc.). At least one aux slot for each craft.
Let’s add some improved missiles to tech tree. New super heavy missile, heavy missile, light missile and rocket made with alien alloys with increased range and power compared with original Earth missiles (in case of super-heavy missile perhaps only range increase).
It would be good to convert craft Blaster launcher to heavy missile launcher instead of a cannon.
New mission would be appreciated - such as defence of military base perimeter or an airbase perimeter against an alien attack (like in Area 51 mod).
Maybe new weapon – laser gatling machine gun produced with elerium (or heavy laser machine gun) with high rate of fire and at least 65 damage.
Also it would be good if hyperwave decoder could provide additional info about ufo's race, mission, etc. It doesn't work for me right now.
Best wishes!

efrenespartano @efrenespartano

Thanks for your suggestions, pal! We are working to fulfill them. Most of them are currently in our plans, actually. ;D

The new craft weapons are almost ready, we are testing balance and debuggin them. Even some real life high-tech weapons (like the Casaba Howitzer Nuclear Shaped Charge) is going to be in.

Take a look at our Discord, the artist Dauntless1942 (you can follow him on Instagram made a lot of new Laser weapons for each faction in-game, exclusively for our mod. I'm sure you will love them as much as I do.