This site is dedicated to X-COM, a computer strategy game series introduced in 1994 by MicroProse.

This wiki contains a wealth of information including strategy, tactical tips, plus an in-depth look at how the game functions. If you love X-COM and want to contribute, please see the Community Portal. All rookies welcome!

Disclaimer: To be absolutely clear, this site is dedicated to a series of computer games and not to general conspiracy theories regarding UFOs and aliens.

X-COM News

Phoenix Point One Year Edition released!

December 8th, 2020

  • Phoenix Point, the successor to the XCom series made by its original creator, Julian Gollop, has just released its one year edition on Steam and other gaming platforms. The player takes control of Phoenix Point, a top secret organization created to deal with extraordinary threats, as it fights the Pandora virus, an alien lifeform that wishes to remake Earth at its own image, while dealing with human factions that also have their own agenda for the future of the planet, in a game heavily influenced by the Cthulu Mythos. The game follows the classic 4X (Explore, Expand, Exploit, Exterminate) for its Geoscape layer, with a turn-based combat system situated halfway between the original game and Firaxis’ XCOM: Enemy Unknown. Phoenix Point even has its own wiki and it seems influenced by the UFOPaedia!

XCOM: Chimera Squad announced!

April 14th, 2020

  • Firaxis has announced an upcoming spinoff to the XCOM franchise, “Chimera Squad“, to be released in April 24th. The events of the game take place 5 years after XCOM 2 and are centered upon the titular multi-species law enforcement unit keeping the peace among the humans and aliens living together in the metropolis known as City 31, as a seeming spiritual successor to X-COM: Apocalypse. The released gameplay trailer reveals that in addition to playable alien squad members, consisting of the Sectoid Verge, the Viper Torque and the Muton Axiom, the game also introduces a Breaching mechanic for setting up an opening surprise attack at the beginning of combat, a Timeline system where the combatants on both sides individually take turns after each other in a fixed, faction-alternating order rather than the entire team acting as once like in previous games, as well as disposable androids to take the place of injured agents on the team roster.
January 1st, 2018

Maintenance In Progress. In order to improve the wiki’s usage, UFOPaedia has been moved to a new server, together with an an upgrade to its MediaWiki software, all thanks to NineX, who has offered to host the wiki. Please reports any bugs you might find in the Talk: Main Page.

August 10th, 2016

Site move to the new server complete. Ufopaedia.org was successfully moved to the new server, which should solve the past month issues with accessing the wiki. Anti-spam measures are also going to be installed, which should allow later for new site sign-ups. Big thank you to Jo5hua for the new hosting and all the work updating the site.

June 9th, 2015

XCOM 2 on UFOPaedia. An XCOM2 page has been created to collect all the information released so far about the upcoming sequel to Enemy Unknown. Later a section for the new game will be added.

June 3rd, 2014

Long War on UFOPaedia. The much acclaimed Long War mod for XCOM: Enemy Unknown/Enemy Within now has its own subwiki at the UFOPaedia. Long War features over 700 changes to EU/EW and has been described by Jake Solomon (EU’s lead designer) as: “If you liked XCOM, give The Long War mod a shot. Takes XCOM to a new level.”

March 17th, 2014

UFOPaedia on Twitter. The UFOpaedia now has its own Twitter account (http://twitter.com/UFOpaedia). Please use the hashtag #ufopaedia on your posts.

December 29th, 2013

Software Upgrade. UFOpaedia has now been upgraded from version 1.16 to version 1.22. Whilst functionality has been checked and should work as normal, if you encounter anything odd then please let Pete know under the Wiki Software Upgrade section here.

December 27th, 2013

Server Transfer. At 10am GMT on the 27th December the UFOpaedia will be transferred to a new server on strategycore. Posting will be disabled for a short period whilst the transfer takes place.

December 20th, 2013

Enemy Within mapped out. The Maps section of XCOM: Enemy Unknown now contains overhead images of all the EW DLC‘s new maps on the individual map pages.

November 22nd, 2013

Site Maintenance Continues. The good news is that it is possible now to register new users. The bad news is that the spammer problems aren’t solved yet, so when registering please don’t choose a suspicious username or you might find yourself blocked. Hang in there, Commander.

November 2nd, 2013

Site Maintenance. We’re currently performing some site upgrades in order to solve the spammer problem and other issues. While the maintenance is underway it won’t be possible to register new users but already existing users can continue working. Thank you.

September 23rd, 2013

Spam attacks. We’ve been having a lot of spammers recently so we’re taking the policy of preemptive blocking of users with suspicious usernames. To prevent this happening to you either choose a username XCOM related or page edit right after you register. Thanks.

August 20th, 2013

The Bureau: XCOM Declassified section open. The UFOPaedia’s section of the new XCOM game is now open. Feel free to start contributing.

February 7th, 2013

XCOM: Enemy Unknown maps revealed: The Maps section of the re-imagined game’s now contains overhead images of all maps on their individual pages.

December 28th, 2012

Enemy Unknown section growing: The EU2012 section now has over 200 pages. Thanks to everyone who has contributed so far and keep enjoying the game in 2013. 🙂

October 4th, 2012

New Main Page: UFOpaedia.org features a new Main Page, this to better structure the information and news. Each section draws information from two different pages XCOM_News for general news about the games and UFOpaedia News for news on the wiki site.

Enemy Unknown (2012)

XCOM: Enemy Unknown (2012) / Enemy Within DLC

Sequels to Enemy Unknown (2012)

Enemy Unknown (1994)

UFO: Enemy Unknown (aka X-COM: UFO Defense)

Sequels to Enemy Unknown (1994)

X-COM: Terror From the Deep
X-COM: Apocalypse

Prequels to Enemy Unknown (2012)

The Bureau: XCOM Declassified


X-COM: Interceptor
E-Mail X-Com

Featured Projects

UFOpaedia.org is also home to several X-Com based projects.

Discontinued Titles


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