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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%).

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1 year ago TBD 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...

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Future Perfect

Future Perfect

1 year ago TBD 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

1 year ago Released 2012 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...



1 year ago TBD 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

3 years ago Released 2006 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...

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NS2:Last Stand

NS2:Last Stand

2 years ago Released Apr 29, 2013 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

RockDown - Fighter

2 years ago Released May 6, 2013 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 Jun 7 2010 says:

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

+5 votes     reply to comment
Mkilbride Nov 25 2010 buried:



-19 votes     reply to comment
GreenMagicDust Mar 31 2010 says:

can i join can be bt :)

+2 votes     reply to comment
Cybio Feb 20 2010 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 Feb 21 2010 replied:

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

+5 votes     reply to comment
PaiSand Dec 14 2010 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 Apr 24 2010 replied:

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

+1 vote     reply to comment
Kalenov May 20 2010 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 Jun 19 2010 replied:

Yes, that is what I mean ;-)

0 votes     reply to comment
AltTabber Feb 22 2009 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?



0 votes     reply to comment
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Nov 11, 2007
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San Francisco, CA 94107

Latest tweets from @uwedev

Nov 13 2015

Fall 2026? @NS2 T.co

Nov 11 2015

The @Subnautica dev team having a rare face-to-face discussion (normally we’re scattered all over the world!) T.co

Nov 5 2015

RT @Subnautica: A Shocking Update has been released! What could go wrong when combining electricity & water?https://t.co/r4NshCLCEp https:/…

Nov 4 2015

We try to ensure our @HipChat bot ‘Peeper' is capable of automating all contingencies. @CodeLumpN @UWE_Klegran T.co

Nov 2 2015

RT @NS2: Watch @Totalbiscuit command an epic set of NS2 matches in the Polaris Civil War: T.co

Nov 2 2015

RT @Flayra: STILL trying to ship this huge @Subnautica update. It's been a huge lighting and rendering change and it's taking forever. Sorr…

Oct 29 2015

RT @NS2: Happy Halloween, update 277 has been released! Slick new Spark Editor tools included: T.co T.co

Oct 26 2015

@lnowaczek fired

Oct 25 2015

RT @lnowaczek: Tinkering with @MySQL replication and @plasticscm server for @UWEDev in the middle of a night. Jimmy is terrified. T

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