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Unknown Worlds is a self-funded, independent game company in San Francisco, CA. Our goal is simple: to unite the world through play.

We are currently working on Natural Selection 2 on our own custom engine. Past titles include Natural Selection and Zen of Sudoku. We have also worked on titles such as Previously, we worked on titles such as Titan Quest, Titan Quest: Immortal Thone, Empire Earth (two million copies sold) and Mindrover (PC Gamer 89%).

Engines
Spark

Spark

Updated 1 day ago TBD with a commercial licence

The Spark engine is designed to enable small teams to make immersive games. As a tiny team ourselves, having tools that let us iterate extremely quickly...

Games
Future Perfect

Future Perfect Future Perfect

Updated 1 day ago TBD Multiplayer & Co-op Adventure

Future Perfect breaks down the barrier between having an idea for a game, and playing it with friends. The Future Perfect interface allows you to create...

Natural Selection 2

Natural Selection 2 Natural Selection 2

Updated 11 months ago Released Oct 28, 2012 Multiplayer Real Time Shooter

Natural Selection 2 is the sequel to the popular Half-Life mod Natural Selection. It is built on our own engine and will be distributed through Valve's...

Subnautica

Subnautica Subnautica

Updated 7 months ago TBD Single Player Adventure

Subnautica is an open world underwater exploration and construction game. We are Unknown Worlds, the developers of Natural Selection 2, and Subnautica...

Zen of Sudoku

Zen of Sudoku Zen of Sudoku

Updated 2 years ago Released Jun 16, 2006 Single Player Educational

Sudoku is a pattern-matching puzzle with one rule: place the numbers 1 through 9 such that there is only one of each in every row, column and 3x3 box...

Mods
NS2:Last Stand
Natural Selection 2

NS2:Last Stand

Updated 1 year ago Released Apr 29, 2013 Multiplayer First Person Shooter

Last Stand places a team of marines in a desperate, no hope scenario. Against overwhelming odds and with limited equipment, the marines must survive until...

RockDown - Fighter
Natural Selection 2

RockDown - Fighter

Updated 1 year ago Released May 6, 2013 Multiplayer Fighting

RockDown is a free 2 Player On-line Fighter game for owners of Natural Selection 2 created by a small group of developers from Unknown Worlds, Creators...

Post comment Comments
Cremat0r
Cremat0r Jun 7 2010, 9:34am says:

You really should earn hundreds of thousands of dollars with your game, you deserved it!

+5 votes     reply to comment
Mkilbride
Mkilbride Nov 25 2010, 12:37am buried:

(buried)

Jerk.

-19 votes     reply to comment
GreenMagicDust
GreenMagicDust Mar 31 2010, 9:08am says:

can i join can be bt :)

+2 votes     reply to comment
Cybio
Cybio Feb 20 2010, 12:00pm says:

I think you should change on your NS1 Page that you are working on NS2 as a Mod for Hl2 ;-)

+1 vote     reply to comment
Runekn
Runekn Feb 21 2010, 5:16pm replied:

NS2 is no mod, or is it that you are talking about?

+5 votes     reply to comment
PaiSand
PaiSand Dec 14 2010, 1:26pm replied:

No, it was not meant to be a mod but a full stand alone game. Initially started being developed on the Source engine but due to the limitations on this engine they decided to go and start their own engine, now known as Spark.

+3 votes     reply to comment
Cybio
Cybio Apr 24 2010, 9:51am replied:

Yeah but you wrote that NS2 is a Mod for HL2 there ;-)

+1 vote     reply to comment
Kalenov
Kalenov May 20 2010, 3:59am replied:

God that was -years- ago xD Back when NS2 was first announced, to the best of my knowledge, it was supposed to be a HL2 mod :P I think that's what he's talking about.

+4 votes     reply to comment
Cybio
Cybio Jun 19 2010, 2:37pm replied:

Yes, that is what I mean ;-)

0 votes     reply to comment
AltTabber
AltTabber Feb 22 2009, 1:09am says:

Hey I'm a big fan of Zen of Sudoku.

We need more games like that, well brain-trainers in general, but more specifically... perhaps Zen of Kakuro?

Kakuro.com

=)

0 votes     reply to comment
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Nov 11, 2007
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Twitter

Latest tweets from @uwedev

RT @futureperfgame: It begins... Future Perfect dev update 1: T.co T.co

5hours 25mins ago

RT @NS2: Insanity. The Natural Selection 2 Mega Pack. Deluxe, Combat & all DLC, for 90% off: T.co T.co

Nov 26 2014, 3:03pm

RT @max_mcguire: Really happy with the combined move/rotate gizmo in @futureperfgame. Never seen it done before, but seems obvious now http…

Nov 26 2014, 1:19pm

RT @futureperfgame: Future Perfect's Steam page is live! You can't buy (buy here: T.co) but Community Hub is active! http…

Nov 25 2014, 8:38pm

RT @Flayra: Behold, the vibrant, massive..."Rockpuncher" (left-drag rotate, mwheel to zoom): T.co @sketchfab #gamedev @s

Nov 25 2014, 4:48pm

RT @max_mcguire: Today we announced and released an "earliest access" version of our new game, Future Perfect T.co

Nov 25 2014, 11:25am

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