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Whether you play as one of the elite marine Frontiersmen or the vicious alien Kharaa, you must use unique strategies and your abilities to win. Marines buy weaponry and form persistent squads to find and destroy alien hives. Aliens can choose a wall-running Skulk, pudgy Gorge, flying Lerk, murderous Fade or gigantic Onos that can devour enemies whole.

Real-time Strategy
New strategy gameplay allows players to Command from overhead. Build structures anywhere, collect resources and research upgrades. The marines can build phase gates, sentry turrets and siege cannons to assault the enemy. Aliens can build upgrade chambers, evolve special abilities, lay eggs and plant traps.

Dynamic Environments
Levels change as you play. Spreading alien infestation deforms hallways and causes space station power failure, halting all lifts. Destroying a catwalk's supports causes it to fall, revealing a new route. Use a flamethrower to clear infestation, spin webs to block a passage or weld a bulkhead shut for a last defense. Every game is different.

Unlimited Variations
Flexible game rules and scripting allow you to create your own unique scenarios like "Colonist Rescue", "Alien vs. Alien" or anything else you can dream up. Free automatic updates keep the game fresh by adding new levels and abilities.

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New Shadow Tier Content New Shadow Tier Content Elite Assault Marine
Blog RSS Feed Report abuse Latest News: Return to Eclipse in Natural Selection 2

2 comments by SgtBarlow on Dec 20th, 2013

Computer Core

Something must be in the air at Unknown Worlds. Not only are we announcing new games, we’ve also started hitting deadlines! We promised you Eclipse at the end of 2013, and with 11 days to spare we are proud to announce that is has been released!

Eleven years ago, Eclipse was one of the original Natural Selection battlefields. Tight corridors, multiple Hive spawns, iconic rooms, Eclipse was one of the greatest maps ever made for the original Half-Life mod.

Marine Start

Now, we can all return to Eclipse. Painstakingly recreated, the map is faithful to the original while allowing for the evolution of Natural Selection 2 gameplay. By taking advantage of Spark’s modern rendering techniques and UWE’s art resources, the mapping team has been able to remake every corner of Eclipse in exquisite detail.


The team that built Eclipse was led by Jake ‘Jonacrab’ Smith. Under the artistic direction of Cory, Jake drew together work from mappers Oliver ‘Dux’ Hobbs, Michael ‘Olmy’ Schouten, Andrew ‘Insane’ Jones, Marc ‘Sgt Barlow’ Newton, and art from Sergey, Dmitry, Yuri and others from Fox3D.

Looking towards East Foyer

Eclipse is included as part of Build 262, which was just released on Steam. Build 262 is free for all existing players of Natural Selection 2, and includes a bunch of other improvements to the game. Here is the full change log:


  • Fixed players sometimes being stuck in command station at round start
  • Fixed Infestation blobs blocking commander view
  • Server Browser now highlights player count yellow if the server is semi-full due to reserved slots.
  • Removed texture streaming option from main menu since it wasn’t doing anything
  • Fixed all structures being outlined blue when on overhead mode as spectator
  • Fixed projectiles colliding with invisible movement collision group
  • Fixed ECHO_HARVESTER tooltip missing when echoing an Harvester
  • Fixed accidental use of voice order keys while ESC menu is open
  • Fixed bug where marine buy menu did not close when player was Stomped
  • Fixed Stab not having a custom icon
  • Fixed round start music not playing due to incorrect path
  • Fixed WhipBomb showing killed with BileBomb in console
  • Fixed loading screens using the wrong art sometimes
  • Fixed commander bindings reverting to default if a player joins a server before opening the options menu


  • Added new map: Eclipse
  • Added new main menu background
  • Added egg counter for Alien Commander in the top of the commander interface
  • Added Hive skill and level stats under name in main menu
  • Added support for new structures in ScenarioHandler. Added one other check path that works.
  • Added link to forums by clicking logo
  • Added remixed NS1/NS2 main menu theme


  • Ammo packs now refill all weapons instead of only the active one


  • Limit hit effect messages to 100 per second
  • Correctly limit max resources network field to 100 per player
  • Reduced network traffic generated by static structures
  • Implemented extra precaching to reduce incidence of hitching at the start of rounds
  • Optimized network traffic produced by Insight spectator system
  • Minor optimizations for skulk movement (optimized wall traces and removed predict wall walking)


  • Insight spectator system now outlines players in overhead view by default
  • Replaced “request enzyme” with “request drifter” in the Alien ‘commo-rose’
  • Servers with cheats enabled no longer send data to the Hive stat tracking system


  • Revert auto-generation of overviews by Builder due to Overview.exe crashes
  • Fixed crash in editor related to file type properties
  • Allow mappers to define custom round start music in ns2_gamerules entity
  • Added console command playmusic. Usage: sound/NS2.fev/pathtosound

Refinery (Thanks SamusDroid)

  • Fixed pathing in Lava Falls
  • Fixed some textures and gaps
  • Fixed some stuck spots
  • Adjusted some death trigger scales
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Natural Selection 2 HD Wallpaper Set

Natural Selection 2 HD Wallpaper Set

May 13, 2013 Wallpapers 1 comment

Pixels are addictive. There are never enough. More definition, higher resolution, greater pixel density. But what to do with all those high-resolution...

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Post comment Comments  (40 - 50 of 693)
ScubaSteve3465 Oct 31 2012, 8:19am says:

Im wondering if the game will also be released on GreenManGaming.com? Im sure im not the only one thats curious, so if you could shed some light on this, i would be very grateful. Thanks and great job on release.

+2 votes     reply to comment
ScubaSteve3465 Oct 31 2012, 7:56pm replied:

Can anyone give some insight on this please?

+2 votes     reply to comment
DerAndere Dec 19 2012, 12:24pm replied:

Ask UWE on their forums. All the interaction is taking place there.

+1 vote     reply to comment
Metal-Payne Oct 25 2012, 1:37pm says:

A 6 man team, made a game that's on par with most games on the market today... Sold.

+3 votes     reply to comment
_Dexter_ Oct 31 2012, 12:59am replied:

Kinda like Tremulous, only extremely up scaled graphically (and not free) You get more than you pay for. Game-play looks solid, and incredibly balanced. And at a modest price.

+4 votes     reply to comment
Mkilbride Nov 5 2012, 5:00pm replied:

No, Tremulous is kinda like Natural Selection.

NS1 came out before Tremulous, based off a Quake 2 mod called Gloom.

+2 votes     reply to comment
SinKing Oct 24 2012, 9:50am says:

I think if you can run Crysis at high settings you can run just about anything, so this statement is ********. I do have a strong lineup, but my PC is not out of the ordinary and NS 2 runs just fine. (Arma II runs much worse on it)

Which is actually the reason why I came here today. I pre-ordered the game so many years ago, basically after NS for Goldsource was no longer played. I had mixed feelings inbetween and thought you were screwing up with your own engine. It ran pretty choppy at times.

Now I played the latest Beta and I'm so damn impressed, I have to appologize humbly. What you have achieved here is incredible. The engine and things possible with it are quite amazing. I would have never believed this team is only a few people in size. You've done a great job and I can hardly wait for the stuff I get for pre-ordering. I guess the artbook alone will be an interesting feat. I'd like to know how development looked like at different times!

Very well done! Congratulations on the imminent release!

+4 votes     reply to comment
Kommun1st Aug 22 2012, 3:11am says:

What are the minimum system requirements?

+8 votes     reply to comment
Mkilbride Oct 11 2012, 10:15am replied:

If you can run Crysis

You can't run this.

-3 votes     reply to comment
narutoa123 Oct 14 2012, 1:20pm replied:

what does that mean

+3 votes     reply to comment
fragfest2012 Oct 23 2012, 12:28am replied:

It means he is butthurt that his system can't run the game. If you have a good computer, you will be fine.

+1 vote     reply to comment
narutoa123 Oct 23 2012, 8:56am replied:

but did he mean if you can't? run crysis, you can't run this?

+2 votes     reply to comment
fragfest2012 Oct 23 2012, 12:54pm replied:

He meant his system can run Crysis but can't run this game with a playable framerate. Most likely, there is a physical issue with his PC or a driver issue he is having. Regardless, don't let him stop you from buying this amazing game.

+3 votes     reply to comment
Mkilbride Nov 5 2012, 5:02pm replied:

Yes, which is why Natural Selection 2 is the only game with this problem. I can run BF3 @ 2560 x 1440, with over 100FPS, maxed out, AND 2xAA. Granted, BF3 is made by a huge team, with lots of money, but still.

0 votes     reply to comment
narutoa123 Oct 28 2012, 8:49pm replied:

well....that's just too complicated

+1 vote     reply to comment
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Natural Selection 2
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Released Oct 2012
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