UNEXCOM for OpenXcom

Released (updated ago). Ranked 14 of 153 with 2,831 (0 today) downloads

Published 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.

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_v0.8.3_world_at_war.zip149.32mbv0.8.3 World at War

unexcom_v0.8.2_world_at_war.zip76.39mbv0.8.2 World at War

unexcom_v0.8.1_world_at_war.zip75.63mbv0.8.1 World at War

unexcom_v0.8_storming_the_abyss.zip73.09mbv0.8 Storming the Abyss

unexcom_v0.7.9_storming_the_abyss.zip72.74mbv0.7.9 Storming the Abyss

unexcom_v0.7.8_storming_the_abyss.zip144.69mbv0.7.8 Storming the Abyss

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:

KARIP @karip

many bugs so here is a save game, it crashes after you shoot the ufo and land. Says map is 8 block is 14? or something like that. (just load, kill the ufo that appears over arctic and crash. IF you dont land,go back to base,pass a day, and return to the ufo you can do the mission just fine oO)

2. in what dimension have you guys seen a gun miss at point blanc? In none. this also happens irl. If you are next to an alien you kill him, you dont miss 6 autoshots :D it just cant happen.

3. segmentation error

efrenespartano @efrenespartano

Hey there! Thanks for the feedback and specially the attached files!

1.-, 3.- Yes, it seems that the current Hybrid version is provoking more issues than expected. I'm currently working on the next update and I'll remove all the hybrid mess.

2.- Hahaha some weapons have a chance to fail if you are on CQB, what weapon missed all those shots?

DeltaBeyond @deltabeyond

Your mod is crap of a mess. I have wasted enough time with it. Have you ever try some quality control or play it yourself before publishing it. I lost so much progress and time by reverting back to a prior save before a crashing bug. Also the part that’s playable, I felt there are massive inbalance with the weapons. This mod is not recommended at this stage.

efrenespartano @efrenespartano

Haha that's a quite rude feedback. How about if you send me a PM on Discord with a detailed report, mate? Otherwise, a bunch of unrespectful words won't help me improve the mod, which is clearly still WIP, just in case you haven't seen the page. If not, I won't take them in consideration at all. :)

Valkarin @valkarin

Very conflicting feelings. I still hate this air combat system.
But... The ability to immediately hire skilled soldiers... And the picture for the article "Mercenary support" is from the movie "The Wild Geese"!
I love you guys.

I understand the gameplay reasons why the office, under the auspices of the UN, which protects humanity from obvious and immediate threats, is forced to use equipment - not the best of humanity, but only one of two.
But still, I don’t understand. If we are attacked by an external force that is equally hostile to us all, moreover, we are against this force just like savages against the colonialists.
We have good examples of what happens to savages who have lost to the colonialists.

And still...

- You need to join us for a better future.
- Join YOU?!
- We've got to learn to care for each other or they'll be nothing left of our Africa except battlefields.
- You have a point there. But do you have an answer?
- I have the will to look for one. We must forgive you for the past and you must forgive us for the present. If we have no future together, then we have no future. That's what I believe in, and that's what I'm going to die for.
- You're beginning to sound good to me.

efrenespartano @efrenespartano

Well... the air combat system is meant to be harsh, perhaps i went a little too far haha.

We love you too:)
You have good taste in movies!

naenaed1588179853 @naenaed1588179853

I feel like the early game is pretty unbalanced, because I can't seem to get past the second month on superhuman. I get that outdated aircraft can't compete with modern interceptors, let alone alien UFOs, but it just seems kind of ridiculous. The only missions i could respond to were terrorist and terror missions.

Both I got clowed on. Hard. The skyranger doesn't seem to exist, instead everyone is out in the open to get reaction fire'd and die. It seems like a really good mod, with lots of effort put in, but everyone just gets shot up left and right with no real "strategy" to counter it. I know troops are supposed to be expendable, but this seems a bit much. If you have any tactics or tips they would be greatly appreciated.

Lore wise it's a bit questionable that the USA is perfectly fine with USSR collaboration. I really like this mod, and I can't wait to see where it goes.

(p.s the usa support ufopedia image has something wrong with it. it's orange)

naenaed1588179853 @naenaed1588179853

update: I got past month two, my first mission was one with a single terrorist and my second had a lab ship full of them. Is that normal?

efrenespartano @efrenespartano

Hi, naenaed1588179853! Thanks for taking the time to write your feedback.

Replying to each point:

"I feel like the early game is pretty unbalanced, because I can't seem to get past the second month on superhuman. I get that outdated aircraft(...)"

TBH, I didn't made this mod thinking on balance for Superhuman. I prefer to play on Veteran or Genius. But yes, it is required a lot of balance on the mod. The outdated aircraft you mean, is the Tunnan? If yes, it is intended to be weak. It was outdated on Sweden by the time of the beginning of the mod, actually. That's why it is a gift for UNEXCOM. It is inspired by the actual Tunnans that fought on the Congo Crisis, on the early 60s. And even IRL, Sweden left behind the J92s send to aid the UN, because were useless.

"Both I got clowed on. Hard. The skyranger doesn't seem to exist, (...) If you have any tactics or tips they would be greatly appreciated."

Indeed, I'll made some changes to the paratrooper landing zone for the Hercules, to give some more cover. My strategy is saturate the area with M18 Smoke Grenades and throw Flashbangs ASAP, specially on Terror Sites (both human and alien). It helps to get your troops away from the LZ

"Lore wise it's a bit questionable that the USA is perfectly fine with USSR collaboration. I really like this mod, and I can't wait to see where it goes."

Hahaha there is an explanation, will be displayed via pop-up events on the Geoscape (we are working to implement it). But a small hint: In this alternate timeline, the Apollo-Soyuz Test Program happened earlier than on our TL. The relations between US and USSR are much better after it. BUT, the Soviets really hate the Europeans (due some skirmishes on the German border that each faction accuses the other one to provoke), that's why you can have both US and USSR support, but no NATO and USSR help.

"update: I got past month two, my first mission was one with a single terrorist and my second had a lab ship full of them. Is that normal?"

Maybe. If you can, send me your savegame on the IDT Discord (the link is above) to give it a look. :)

Thanks for your kind comment, it keeps me motivated to keep working!

blizzardwing @blizzardwing

Great mod all around, but it is not very clear which ammunition belongs to which gun. For example, when I first went into a mission, I assumed that the three different types of 7.62 NATO ammo would work for all the 7.62 NATO guns. Unfortunately, since I brought 30 round mags, my one section Bren gun had plenty of ammo, but my FALs had no ammo. Is there a way to make it a bit clearer which gun wants which size of clip? I know that the Ufopaedia entries specify caliber, but is still amibgous which magazine size. Is there way to change this or to make all the different sizes work for all the same caliber? Other than that, I am really enjoying this mod!

efrenespartano @efrenespartano

Hi, blizzardwing! Glad to hear you enjoy our mod!

Initially, I made all three ammo sizes available for all weapons, but it was annoying that the game loads the first ammo, maybe on rifles is not a problem, but it does when you need to manually change the 5 rounds clip of 7.62mm NATO from a LMG.

I'll include extra info on the UFOPedia entry of each gun, but you can get an idea of which magazine could be used on which weapon, by looking at the ammo clips at the right of the UFOPedia page.

Knobblet @knobblet

Brilliant mod! However I have one question, when an enemy craft (usually a helicopter) crashes into the ocean it doesn't get destroyed. Is this supposed to happen? and if so, how does one start the mission, as it usually crashes as I try to start it.

efrenespartano @efrenespartano

Hi, Knobblet! Glad you liked the mod!

The helicopter doesn't gets destroyed on the ocean because the oceans now have terrains! We are currently working to introduce full Underwater combat, with a new Tech Tree and new enemies and weapons. Also, one fellow modder named Finnik is working on some cool Underwater features that we hope will be introduced soon, that will limit the usage of certain enemy crafts (like bad human crafts) on the ocean.

I'll take a look at that issue that you reported, mate. I think If I find it soon, will be fixed on the next update. Thanks for playing our mod! :D

Knobblet @knobblet

Sounds awesome! Thanks for the brilliant mod :) Wish you and everyone else the best for future updates and future mods!

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!