UFO Screenshots
It is the year 2084. You control a secret organisation charged with
defending Earth from a brutal alien enemy. Build up your bases, prepare
your team, and dive head-first into the fast and flowing turn-based
combat.

UFO: ALIEN INVASION is a squad-based tactical
strategy game in the tradition of the old X-COM PC games, but with a
twist. Our game combines military realism with hard science-fiction and
the weirdness of an alien invasion. The carefully constructed
turn-based system gives you pin-point control of your squad while
maintaining a sense of pace and danger.

Over the long term you will need to conduct
research into the alien threat to figure out their mysterious goals and
use their powerful weapons for your own ends. You will produce unique
items and use them in combat against your enemies. If you like, you can
even use them against your friends with our multiplayer functionality.

'UFO: Alien Invasion'. Endless hours of gameplay -- absolutely free.

The game takes a lot of inspiration from the X-COM series by Mythos and
Microprose. However, it's neither a sequel nor a remake of any X-COM or
other commercial title. What we as a team wanted to make is a brand new
experience that tries to surpass the quality of games from 1992, rather
than simply recreate them with flashier graphics.

We also believe that open-source projects don't
need to be disorganised or badly-managed. We work together in a
friendly and professional way, with a clear vision for a game that we
know is worth playing.

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1 comment by mattn on Nov 10th, 2013

A new game I'm working on is now available for Android. If you like the game, please rate it.


CaveExpress is a classic 2D platformer with physics-based gameplay and dozens of levels. Master your pedal-powered flying machine to pick up packages from your cave-dwelling clients and drop them off
at the collection point. But beware! Mighty mastodons, terrifying pterodactyls and others would rather see you extinct.

I'm also working on a Windows version released on Desura. It will be available soon.

Caveproductions.org
Play.google.com

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UFO: AI - Crystan OST

UFO: AI - Crystan OST

May 9, 2012 Music 3 comments

These are the tracks i composed for UFO: Alien Invasion. Some of them havn't made it into the release for various reasons - they're tagged as unused.

UFO: Alien Invasion 2.4

UFO: Alien Invasion 2.4

May 5, 2012 Full Version 0 comments

A dozen new maps to battle aliens Rescue soldiers in dropships shot down by aliens and retreat from battles New particle and sound effects for weapons...

UFO: Alien Invasion 2.3.1 MacOSX

UFO: Alien Invasion 2.3.1 MacOSX

Nov 30, 2010 Full Version 0 comments

UFO: Alien Invasion has released 2.3.1. This release is a bug fix for the stable 2.3 release and maintains compatibility for all saved games under 2.3...

UFO: Alien Invasion 2.3.1 Windows

UFO: Alien Invasion 2.3.1 Windows

Nov 30, 2010 Full Version 3 comments

UFO: Alien Invasion has released 2.3.1. This release is a bug fix for the stable 2.3 release and maintains compatibility for all saved games under 2.3...

UFO: Alien Invasion 2.3 Linux

UFO: Alien Invasion 2.3 Linux

Jun 18, 2010 Full Version 2 comments

The UFO:AI development team is proud to announce the release of UFO: Alien Invasion Version 2.3. Two years in the making, this version features loads...

UFO: Alien Invasion 2.3 MacOSX

UFO: Alien Invasion 2.3 MacOSX

Jun 18, 2010 Full Version 0 comments

The UFO:AI development team is proud to announce the release of UFO: Alien Invasion Version 2.3. Two years in the making, this version features loads...

Post comment Comments  (40 - 50 of 237)
cyberkiller40
cyberkiller40 Apr 5 2013, 2:07pm says:

The Linux version is very outdated here - it's 2.3.1 (from 2010) :-/.

+1 vote     reply to comment
darksider3
darksider3 Apr 4 2013, 8:04pm says:

everytime i do see that the video card drivers not up to date, and i make that sure. Dont run on Windows 7 with WDM

+1 vote     reply to comment
fredamora
fredamora Feb 28 2013, 10:58am says:

First off, I think it's a great game. Games like this appeal to me a lot. But coming from Jagged Alliance 2, I have some questions regarding strategic mode:
1. Do covers work? Like when I hide behind a car, there's a less chance of hitting me?
2. Is there an interrupt system? Like if I had saved up action points, there's a chance that when an enemy is sighted you could use the saved AP to attack him...if an interrupt occurs. Which brings me to 3. If there's an interrupt system, can I prepare or raise and point my gun in advance to improve interrupt frequency? In JA, you can press "L" and click once to rotate to desired direction; twice to raise your gun.

Regardless if there's none of those, I still think this game looks great. I just want to know as I'm new to XCOM.

+1 vote     reply to comment
H-Hour
H-Hour Mar 1 2013, 4:37am replied:

Thanks fredamora. I think JA2 players are often confused in ground combat because the two are quite different.

1. When any unit fires a projectile in UFOAI, it's actually shot out into the 3D world. If you're standing behind cover of some kind, the projectile will be blocked. There is no dice-roll to determine if a shot is successful or not. It's sent down-range and checked to see if it was blocked by anything. This means partial cover is very important -- standing behind a crate that cuts off the lower half of your body really matters. It also means that you should watch and use cover from multiple vectors. "Cover" is not a feature of a particular tile (ie - this tile covers 50%, that tile 75%), but arises naturally from the 3D environment. If you can stand behind a crate to your front with some more crates a few tiles over on your right, you'll get cover from both directions.

2. We call it "Reaction Fire" and it works like this: if I have soldier A set to reaction fire with an 8 TU snap shot, and alien Z walks into view and tries to shoot him with an 8 TU firemode, soldier A will get to shoot his reaction shot first, because is costs less than the TOTAL TU alien Z spent in front of soldier A (TOTAL TU = 2 TU to walk one grid into view + 8 TU firemode). However, if soldier A was set to reaction fire with a 12 TU firemode, then alien Z would get to shoot first and would still have 2 TU to walk out of view.

The same is true for aliens. They reserve TU for reaction fire and learning their weapons' TU costs is very important for effectively using reaction fire.

In order to use Reaction Fire, you need to check the small checkbox in the bottom left of the firemode to choose which firemode to use. Then you need to make sure that Reaction Fire is enabled (look for the button in the center-bottom panel of the HUD). Reaction Fire requires you to reserve the TUs needed for the firemode.

3. There is no mechanism to improve Reaction Fire. It's a straightforward TU contest.

+2 votes     reply to comment
fredamora
fredamora Mar 1 2013, 10:59am replied:

Aha, thanks a lot! That was a very detailed and clear explanation, I think I understand it now. I just have to test it when I get home. Are those in the original series as well or is they new in UFO:AI? Those are some cool mechanics. By the way, is the new UI coming up? Judging from the screenshots, it's a great improvement. Sharper but less intrusive, I think it's even more intuitive. I like the portraits and body shot best; they add more soul to the characters. Very cool

+1 vote     reply to comment
H-Hour
H-Hour Mar 1 2013, 12:15pm replied:

The original x-com had a reaction stat to improve your reaction chances. I'm not sure of the exact mechanic they used.

The new UI won't make it into 2.5, but it's definitely still on the cards. It will probably see more development during the next cycle.

+1 vote     reply to comment
fredamora
fredamora Mar 1 2013, 7:16pm replied:

Too bad new UI won't make it into 2.5. It seems close to completion in the screenshots. Can hardly wait to play with it.

+1 vote     reply to comment
fredamora
fredamora Mar 1 2013, 11:06am replied:

*are ;p

+1 vote     reply to comment
Johnh224
Johnh224 Feb 13 2013, 7:13pm says:

sooo.... anyone got advice for taking out alien fighters near the start of the game?

+1 vote     reply to comment
H-Hour
H-Hour Feb 14 2013, 5:21am replied:

Use multiple interceptors to gang up on them.

+1 vote     reply to comment
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UFO: Alien Invasion
Platforms
Windows, Mac, Linux, Android
Developer & Publisher
UFO: Alien Invasion Team
Engine
id Tech 2
Contact
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Official Page
Ufoai.org
Release Date
Released Dec 30, 2003
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Community Rating

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9.1

488 votes submitted.

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Highest Rated (18 agree) 10/10

great fun! worth downloading!

Nov 18 2010, 3:41pm by Dudok22

Style
Genre
Turn Based Strategy
Theme
Sci-Fi
Players
Single & Multiplayer
Project
Indie
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