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X-COM: UFO Defense

DOS - 1994

Also available on: Amiga

Alt names
X-COM 未知なる侵略者, X-Com: UFO Defense Collector's Edition, X-COM: Terran Defense Force, X-COM: Michi Naru Shinryakusha, X-COM: Enemy Unknown, UFO: Enemy Unknown, UFO: Der unbekannte Gegner
Released in
United States
Role-Playing (RPG), Strategy
Sci-Fi / Futuristic, Turn-based
MicroProse Software, Inc.
Mythos Games Ltd.
Dosbox support
Supported on current version
4.45 / 5 - 225 votes

Description of X-COM: UFO Defense

Offering role-playing (rpg), strategy in a world of sci-fi / futuristic, turn-based, X-COM: UFO Defense (also known as X-COM 未知なる侵略者, X-Com: UFO Defense Collector's Edition, X-COM: Terran Defense Force, X-COM: Michi Naru Shinryakusha, X-COM: Enemy Unknown, UFO: Enemy Unknown, UFO: Der unbekannte Gegner) is an abandonware developed by Mythos Games Ltd. and published by MicroProse Software, Inc.. Released in 1994, you wander around in a isometric perspective.

The first game of the X-COM series, UFO was well received but suffers from its uneven graphics and the heavy menus. The game takes loads of hours to be enjoyed!

How to play X-COM: UFO Defense

XcomUtils 9.7 is in the archive, this utility will help fix many bugs in the game. Please check the UFOpedia page or the official XcomUtils website.

Comments and reviews

madman 2015-09-01 0 point

Just cant seem to get this game x-com anywhere. My friend that died of cancer used to play this with me before he passed, and would love to finish the game out. I lost the damn disc, and old tower we played on. Any help would be appreciated. Thank you. Byron Mcclellan.

ermete 2015-08-15 0 point


vahyxx 2015-07-29 2 points DOS version

X-com 1 2 e 3 funcionam em dosbox. PONTO.

1 cria uma pasta e descompacta o game nela (recomendo c:\games)
2 monta a pasta do game em dosbox. (recomendo c:\games)
mount c c:\games
3 digite c: e navegue para a pasta do game
4 tecle TAB e os executáveis aparecerão
5 digite UFO

Obs: setup configura o som. É só teclar enter até sair.

experienced 2015-07-18 0 point DOS version

don't run the xcomutil. Norton thinks it is a virus. It might not be, but it isn't necessary to play the game. Just use doxbox (the latest), and ignore the request for a game code and press enter

youngster 2015-07-12 0 point DOS version

I'm wondering if this will work on computers, My only real problems when playing it on the site is that it seems a little laggy which ruins the music which makes the game hard to play. I'm not too old being only 15 but I remember back in the day when i was little playing games like this one and I feel nostalgic.

species2195 2015-07-05 0 point DOS version

I'm trying to install on dosbox on my galaxy s 3. I am at the install screen and it tells me to insert disc 1, and won't let me continue with the install. How do i get past this?

adelara 2015-06-06 0 point DOS version

where is the "data" folder ???

moo king 2015-06-06 0 point DOS version

cant get this to work on dosbox, wont even open the game folder,
having same issue with x-com-terror-from-the-deep, however i made sure only one was present but still neither work.
any help plz?

Anon 2015-05-25 1 point DOS version

If you're trying to play this through DOSBox and you're getting a blank screen when running it, try opening the UFO.BAT file with a text editor and add "rem" followed by a in front of the command "%1intro".

Matty 2015-03-13 -2 points DOS version

Is it the newer X-Com on Steam?

Try to level up a variety of soldiers, since many of them will inevitably be found to be psychically/mentally weak...

santouryuu 2015-02-16 -5 points DOS version

is this really abondanware?it is on steam.not really saying it shoudn't be here,just curious

ThePathfinder 2015-02-14 -6 points DOS version

This game is also available on Windows Mobile PDA.

St. Haborym 2015-01-19 -7 points DOS version

I really would not call this an rpg. It does have rpg elements to it but yeah, more of a strategy game really.

mc1chubby1@gmail 2014-11-23 -5 points DOS version

I can't figure out how to run in my dosbox. I beat it on ps1, still have it and can't get my emulator to play it... Someone please explain how to make it happen! Tytytyty

tforsaken 2014-10-14 -6 points DOS version

Wow I can't stop playing this game, the best game on this site hands down thank you my abandonware it's so addictive.

tforsaken 2014-10-11 -7 points DOS version

I use to play this long time ago im excited about this

Nicolas 2014-09-05 -5 points DOS version

This Game Changed MY LIFE... Im a Fuc... Fan

MITSUBI 2014-09-03 -6 points DOS version

D-Fend_v2.0.62.42 makes it easy.

PLEASE HELP ME!!!!! 2014-08-21 -6 points DOS version

Being that I'm fairly new to dosbox, playing a new game is always quite the trip for me. I downloaded this file and extracted it to my c drive using winrar. i mounted c: in dosbox but i cannot figure out how to open the game in dosbox. I'm sure I'm doing several thing incorrectly, but im really lost right now. PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!f

FA 2014-06-27 -7 points DOS version

Best game of all times.

El 2014-06-16 -6 points DOS version

In X-COM Earth, aliens get probed by YOU!

whirlwindm 2014-05-28 -6 points DOS version

Adding my voice to the chorus, one of the best games ever made (even though we all know the real aliens are just the US Air Force in disguise :0 ). Along with Jagged Alliance 2, one of the best and most addictive turn-based tactical game ever made. The current incarnation by Firaxis have brilliant Unreal Engine graphics, but could not match the depth and game play of this game. Having played this, the Firaxis game is very limited and frustrating. For the real afficionados you can try OpenXCom in sourceforge.

newgorlo 2014-05-05 -6 points DOS version


Doxologist 2014-03-13 -6 points DOS version

Anyone know where to find the registration code?

indstr 2014-02-12 0 point DOS version

I loaded this up when it came out, tried it, didn't really "get" it, closed it. Never looked back. :)

AwesomeGamer9000 2013-12-05 0 point DOS version

I clocked this shit in like 10 minutes.

rip 2013-10-23 0 point DOS version

so well

anon 2013-10-15 0 point DOS version

avoid. it is already cracked so you can't use the ufoExtender fixer.

anon 2013-09-09 1 point DOS version

The file to execute is ufo.bat

AndOnceMore 2013-05-21 0 point DOS version

This may sound stupid but which file should I open in DOSbox to start the game? I've tried a few but they don't initiate the game

Hal 2013-05-13 0 point DOS version

Best game 4ever! :D

onewingedangel 2013-01-19 0 point DOS version

angry joe introduced me to this game, and its awesome

The Alien Brain 2013-01-16 0 point DOS version

I hate this game. Why did they villainize me? :(

EliUmniCk 2013-01-14 0 point DOS version

Ok it seems dosbox 0.74 work much better with the cd version of this game (v1.4). Saddly the link here only provide the floppy v1.2 version.

EliUmniCK 2013-01-07 0 point DOS version


I have download this game and D-Fend Reloaded.
The game works fine, i have played like 5 hours, and now, every new same game i try to make is corrupt (when i try to load it, the game freeze and nothing happend).
Hopefully, i had different save file, so i didnt lost much, but now i can't progress in the game (or to be more precise i cannot save anymore ^^).
Any idea on how to fix this issue ?

Jorgusson 2013-01-07 0 point DOS version

The world was not the same after this game ;-)

Mangler 2013-01-05 0 point DOS version

Absolutely hands down the best game ever! The new one is ok but nothing will ever be better than this... and star wars galaxies... that is all.

Luk 2012-11-26 0 point DOS version

The Best!!!

oldster 2012-10-27 5 points DOS version

I forgot to mention that you have to capture a leader, so research on him; then do research on mars solution or something like that. THEN capture/do research on a commander. The game says that commanders reside only in alien bases, but that isn't entirely true. I have captured a commander on a battleship. I wouldn't have known what it was beforehand except that I was using the mind tool to discover what each alien was before attacking it. When I saw it, I was surprised. The game tries to fool you by having the commander standing outside where it will be one of the first aliens contacted. without the mind tool, you won't know what it is, and will end up killing it and missing the opportunity to capture him. Don't worry about losing a couple of soldiers in the process, because it makes the game shorter. Try and isolate the commander, then gang up on him with at least 3 or 4 soldiers with stun rods at the same time.

simblanco 2012-10-19 0 point DOS version

as far as i remember, I don't think you have to follow a specific order, but it's a lot of time I last played....


oldster 2012-10-03 1 point DOS version

In order to finish the game, you have to capture a commander from a battleship and do research on him, but you have to be sure to do research on all of the other aliens first, not all of the races, just several of the officers, starting with a soldier, then an engineer, then a leader, then a commander. If you get these out of order, you will be at a dead end.

bukimi 2012-08-30 0 point DOS version

I never could really finish the game. Made research on all aliens, both living and dead (commanders too) and I still did not have anyt way to finish the game. Is there any way to really finish it?

Skylo 2012-07-23 0 point DOS version

Awesome game! Stylish graphic and freezing sound efects....recommeded by Fox Mulder itself!

Kiasu 2012-06-10 0 point DOS version

I played it when it came out, then when I had kids they played it and loved it. It taught them game play wins over flashy graphics.

Will there ever be a squad game as good as this again?

Branes51 2012-04-26 0 point DOS version

This just might be the best computer game ever made although Civilization might share the honors with it. This game however will make you nervous about every single move you make with your men because the enemy might vaporize them at any second. The sheer horror you feel when you realize your best Sergeant just got taken over by a Chrysalis and now he's killing everyone in the squad can't be equaled by any game I have ever played.
To my mind, if you haven't played this game, you can't claim to be a real gamer.
It's that good.

Goodbrew 2012-03-15 1 point DOS version

With so many similarities between this game and the real world, it is obvious this game was developed by aliens to fictionalize ideas and turn the idea of aliens into entertainment so nobody would actually believe it!

Nesso 2012-02-12 0 point DOS version

A great game even after 17 years....why ppl don't do such great games??

Mymoon 2011-10-12 0 point DOS version

I only break for sectoids!

md 2011-08-25 4 points DOS version

There are many parallels between the basic ideas of this game and many of the things we see going on with real UFOs. See Bob Lazar's website and how he describes the UFOs that he says are kept at Area 51. Also the fuel that is used to power these UFOs is similar to Elerium; it is claimed to be "Element 115", which is used to power their matter-antimatter engines.

The aliens in this game are similar to aliens that supposedly exist on Zeta Reticuli (the greys), and other solar systems not far from earth. There is no doubt whatsoever in my mind that the creators of this game built its basic premise upon things that are alleged to be going on in the real world. True or not, I cannot say for sure, but I can't rule it out completely.

Baron 2011-06-06 0 point DOS version

The perfect game.

AdolfoderWolfo 2011-04-13 0 point DOS version

Still a great game!

Greenscreen 2011-04-02 0 point DOS version

Perhaps one of the best strategy games ever made. It still lives on my computer (Steam version) and it's still captivating despite its ancient graphics.

admin 2010-12-11 1 point DOS version

hmm, there was a ZIP file in another one. Now it's good ! Thx

Nil 2010-12-10 0 point DOS version

Doesn't work. Zip contains a folder with another zip in it. That zip contains only a .txt. Even D-Fend Reloaded couldn't find anything in it.

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