You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace. Features: Command deadly close-combat battles Shooting down UFOs is just the beginning: you must then lead a squad of heavily-armed soldiers across different terrains as they investigate the UFO crash site.
User reviews:
Overall:
Overwhelmingly Positive (1,227 reviews) - 96% of the 1,227 user reviews for this game are positive.
Release Date: Dec 31, 1993

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Buy X-COM: UFO Defense

Packages that include this game

Buy X-COM: Complete Pack

Includes 5 items: X-COM: Apocalypse, X-COM: Enforcer, X-COM: Interceptor, X-COM: Terror From the Deep, X-COM: UFO Defense

 

About This Game

You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace.
Features:
  • Command deadly close-combat battles
    Shooting down UFOs is just the beginning: you must then lead a squad of heavily-armed soldiers across different terrains as they investigate the UFO crash site. Tackle the aliens with automatic rifles, rocket launchers, and even tanks in the struggle to retrieve useful technology, weapons or life forms.
  • Research and manufacture alien technologies
    Successful ground assault missions will allow X-COM scientists to analyze alien items. Each new breakthrough brings you a little closer to understanding the technology and culture of the alien races. Once you have sufficient research data on the UFO's superior weapons and crafts, you'll be able to manufacture weapons of equal capability.
  • Develop a strategy to save the Earth
    You must make every crucial decision as you combat the powerful alien forces. But you'll also need to watch the world political situation: governments may be forced into secret pacts with the aliens and then begin to reduce X-COM funding.

System Requirements

    • Supported OS: Microsoft® 2000/XP/Vista®
    • Processor: 80386 processor or better
    • Memory: 4Mb RAM
    • Sound Cards Supported: AdLib compatible cards, SoundBlaster compatible cards and the Roland LAPC-1.
Helpful customer reviews
37 of 42 people (88%) found this review helpful
5 people found this review funny
2.0 hrs on record
Posted: January 10
Still one of the best squad based strategy games ever made, though I personally prefer it's semi-broken sequel Terror from the Deep. Take note, Firaxis. This game isn't as pretty or customizable as yours but has a functional strategic aspect, economic aspect, allows the construction of multiple bases, and in fact, has a functional enemy AI that isn't simply a RNG based reactive prescence but something actively trying to kill you on both the geoscape and battlescape from the moment you start playing.

10/10

Would go through the Chryssalid flow chart experience again.


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14 of 14 people (100%) found this review helpful
2 people found this review funny
3.7 hrs on record
Posted: December 23, 2015
The best tactical game you can buy. This title started the X-COM franchise which has had it's ups, downs, and it's long periods of absence - but it endures. Modded or not, UFO Defense excels at creating a narrative, stories that are told by the gameplay as well as information filled in by the player. You'll develop odd attachments to X-COM agents even though there is little-to-no detail given about them aside from which ridiculous haircut they have. Very difficult, but no in an unkind way like it's successor Terror from the Deep.
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11 of 12 people (92%) found this review helpful
5.1 hrs on record
Posted: February 3
I've spent enormous amount of time playing that game.
It has only one minus, the game is old and so is the picture. It takes time to get used to it.
Other than that - it is the best must-play turn-based strategy, in my opinion.

Like in new XCOM, there are two parts - turn-based combat and economical simulator on global map.
In the global part you set up the base (up to 6), build all kind of facilities, in order to research, copy, manufacter and then sell alien technology-based staff, thus making yourself financially self-sufficient. Build lots of storage rooms and collect prescious ellerium. Lots of ellerium. Also, there you hire soldiers, screen off weak, and manualy customize the strong ones. Make up capable squad.

You have a lot of freedom in the global part to make a separate game from it , however the real kicker of the game is the squad combat part.
If you are new to a game aliens will often beat you up on easy difficulty. And it hurts. After 100 h X-COM becomes something like chess. You start using exploits like it was designed to do so. There you can master superhuman difficulty.
After 200h of playing and reading a lot of material from X-COM wiki you can easily kick chrissalid terror mission's butt during the night on superhuman using only conventional weapons. And even then, when you feel super confident, sometimes, soldiers, you became so attached to, you trained so well, all die, due to grenade relay malfunctioning. In one big kaboom. Well... when humankind is on stake, no person is irreplaceable and the fight continues.


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9 of 11 people (82%) found this review helpful
3 people found this review funny
0.3 hrs on record
Posted: December 31, 2015
Feeling nostalgic i decided to reinstall this again, setup a game in Superhuman difficulty, blast a probe and kill the very first sectoid easy, feels good, in retaliation the Ayylmaos attack my base, i make a stand and kill a bunch of sectoids, one surprises me from behind and wrecks my team with a blaster launcher, 3/4 of my team is dead besides 2, which both later dies by the hands of the last sectoid.

This is why i like this game very much.
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6 of 6 people (100%) found this review helpful
23.2 hrs on record
Posted: February 21
believe me this port is reaaly bad, if you want it to be playable make these changes , I only recommend it with these configurations, go to
steamapps / commom / xcom ufo defense open dosbox.conf and changes this

fullscreen=false
fulldouble=false
fullresolution=1024x768
windowresolution=1024x768
output=surface
autolock=true
sensitivity=100
waitonerror=true
priority=higher,normal
mapperfile=mapper.txt
usescancodes=true

[render]
frameskip=0
aspect=false
scaler=advinterp3x

[CPU]
core=normal
cputype=489_slow
cycles=fixed #number
cycleup=4000
cycledown=20

[MIXER]
nosound=false
rate=44100
blocksize=1024
prebuffer=20

EVERY TIME you start the game put speed [cycles] at 17000 or 19000 with the key ctrl+f12 for up or ctrl+f11 for down

YOU ARE WELCOME

xcom terror from the deep is way better optimized , you do not need to make any change
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