Natural Selection is an action-strategy game for the PC. It is a "Half-life modification", which means it is written on top of the Half-life game engine. "Mods" are a new sort of underground game development that enables small teams to create games using the technology of existing games. This means less expensive and lower risk game development, which allows experimentation and innovation. This arrangement also implies that "mods" are made as art, not for making money. When complete, Natural Selection will be released for free to all owners of Half-life, which is required to play Natural Selection.

Game summary

Multiplayer-only Half-life mod where one team plays marines and the other plays aliens. The humans must keep their cool and work together to assault an alien-infested spacecraft or colony. Marines vs. marines and aliens vs. aliens scenarios are also supported.

"First-person strategy" with a real resource model and consequences for actions. Both sides are genuinely different and together they accommodate different play styles:

Marines::Fighting skill is less important, strategy and communication take its place. Playing as a marine will be a tense experience with methodical planning and strategy, interrupted with action.

Aliens::Playing as an alien will be an intense action experience, rewarding reflexes and alien heroics. Communication and coordination don't require typing.

Accessible, fast, mouse-driven interface: no keys beyond those used in Half-life needed.

Simple to learn and play, it is hard-core action/strategy for a mainstream audience.

Innovative social dynamics lead to memorable games.

Atmospheric indoor sci-fi environments full of steam, smoke and ambient soundscapes

Natural Selection is out, go get it already! :P

Recent Changlogs:
Version 3.2
Version 3.1
Version 3.0

The team is now working on a version for Half-life II and will post news here when ready.

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Blog RSS Feed Report abuse Latest News: Natural Selection Source Code Released!

2 comments by JPolito on Jan 23rd, 2014

Natural Selection Source Code Released!

Posted by Hugh
Original news post available here: Unknownworlds.com
Natural Selection Source Code

Back in 2002, Natural Selection was released…

Since then, lots has happened. Unknown Worlds was formed and NS2 was released, reaching multiple times the number of players the original mod did. Charlie, the creator of NS, has come so far that he’s now working on a new game: Subnautica.

But we will never forget what started it all. Today, we are proud to announce that Natural Selection Source Code is now available to anyone, free of charge. Head on over to GitHub to get it. It’s not ‘open source’ – There is some legal hoo-ha that prevents that. But it is all there.

Natural Selection 1

Got balance?

You can use the NS source code to make your own version of the original game, fix problems with it, make new problems, or just see how the game worked.

We hope you enjoy tinkering with it. NS was one of the greatest mods of all time – And we can’t wait to see what you are able to do with it.

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Natural Selection v1.0 plus patch v1.04 (outdated)

Natural Selection v1.0 plus patch v1.04 (outdated)

Mar 26, 2013 Full Version 0 comments

It's an old version of NS, dated by 29th October of 2002. Uploaded for historical and collectors' purposes, because it's hard to find on internet now...

Natural Selection v2.0 Dedicated Server (outdated)

Natural Selection v2.0 Dedicated Server (outdated)

Mar 26, 2013 Server 0 comments

It's an old version of NS, dated by 30th July of 2003. Uploaded for historical and collectors' purposes, because it's hard to find on internet now. Requires...

Natural Selection v2.0 Client (outdated)

Natural Selection v2.0 Client (outdated)

Mar 26, 2013 Full Version 0 comments

It's an old version of NS, dated by 30th July of 2003. Uploaded for historical and collectors' purposes, because it's hard to find on internet now. Requires...

NS 3.2 Hungarian Translation with voices

NS 3.2 Hungarian Translation with voices

May 18, 2009 Patch 10 comments

The Half-Life mod , called Natural Selection is basicly ENGLISH, but this one is enables the Hungarian Translation. Ha nem értesz angolul, akkor ezt töccsed...

Natural Selection v3.2 Installer

Natural Selection v3.2 Installer

Mar 2, 2007 Full Version 65 comments

The full client installer for Natural Selection v3.2. Check out the full changelog here.

Natural Selection v3.2 Server

Natural Selection v3.2 Server

Mar 2, 2007 Full Version 7 comments

The dedicated server zip for Natural Selection v3.2. Check out the full changelog here

Post comment Comments  (10 - 20 of 435)
Guest
Guest Jan 14 2014, 7:59pm says:

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durge_hunter
durge_hunter Jan 3 2014, 11:08am says:

my game crashes on launch. any suggestion=?

+1 vote     reply to comment
NachitooBalboa
NachitooBalboa Apr 16 2013, 10:36pm says:

I have a problem, i open the game an this say : runtime error abnornal program termination

can you help my whit my problem please.

+1 vote     reply to comment
Guest
Guest May 25 2013, 8:34am replied:

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Guest
Guest Apr 3 2013, 5:54pm says:

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Gonzalord
Gonzalord Feb 28 2013, 2:24pm says:

I really love NS, it was my first and very best mod for Half Life and i really enjoy playing it but in release 3.2 i have a really strange bug, The entire commander's Menu is black empty and the same happens with the Alien team all the Gorges Build menu are black...
Please can someone tell me how do i fix this? plsss :C

+1 vote     reply to comment
Milanium
Milanium Feb 19 2013, 3:28pm says:

Can you compile the client library from Natural Selection 1 v3.2 for Linux please. :)

+1 vote     reply to comment
Mighty_Guy
Mighty_Guy Feb 18 2013, 9:43am says:

Do people still play this online?

+3 votes     reply to comment
Guest
Guest Jan 31 2013, 4:45pm says:

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CriizPixel
CriizPixel Nov 6 2012, 9:38am says:

I cannot open this mod in a few second close U.U

+2 votes     reply to comment
Gonzalord
Gonzalord Apr 28 2013, 6:49pm replied:

Happned 2 me bro, just add a new shortcut in your desktop for Half-Life.exe and add -game ns
then you already start in the Mod with no crash at start
If problem persists then you must Update your Half Life game to a newer version ;) google it

+1 vote     reply to comment
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Platform
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Game
Half-Life
Developer
Unknown Worlds
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Release Date
Released Jun 3, 2007
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Real Time Strategy
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Fighter
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Multiplayer
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