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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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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...

Post comment Comments  (20 - 30 of 692)
TheUnbeholden Jan 28 2013, 10:55am says:

My issue, the lag, it runs horribly even with my decent computer and adsl 2+ internet. Combine that with the standard alien in the game moves ridicolously fast, you don't even have a chance to aim at them and your already dead. Even people who are into pvp will have trouble liking this. I'll wait till Aliens Colonial marines comes out to get me satisfy my alien squashing needs.

-1 votes     reply to comment
TheUnabridgedGamer Mar 25 2013, 4:18pm replied:

I bet you're -really- regretting that statement about now, aren't you?

+2 votes     reply to comment
DDguy Mar 8 2013, 1:12pm replied:

Well, you got it. Not that nice now, was it?

+2 votes     reply to comment
Mc_Intire Feb 1 2013, 3:33pm replied:

Having no lag issues at all playing with a 460 GTX, an i5 2,66 Ghz quad and 4 gigs of RAM. Since my rig is average if anything I'd say it's not a matter of raw power that causes your problems. Maybe you want to try and tinker with the graphic settings, it may be just one or two settings that are off.

+3 votes     reply to comment
ogur Dec 26 2012, 1:34pm says:

There is a possibility to purchase the cd-key deluxe edition DLC for the basic version of NS2? I have a normal version and I would like to have access to exclusive soundtrack and artbook.

+2 votes     reply to comment
SgtBarlow Creator
SgtBarlow Dec 27 2012, 11:43am replied:

I will remind the office in the new year about getting a Purchase option for the DLC on steam.

+2 votes   reply to comment
Dahamonnah Dec 23 2012, 7:53am says:

Kharaa kinda means "****" in arabic..
Trust me, I'm saudi >.>

+2 votes     reply to comment
Snazz Jan 1 2013, 10:38am replied:

Interesting but not important. Few Arabs would play NS2 and most people just call the team "aliens".

+2 votes     reply to comment
TheUnbeholden Jan 28 2013, 10:56am replied:

its pretty funny not really interesting.

+1 vote     reply to comment
Tewky Dec 19 2012, 4:52pm says:

What a sick looking game. I can't wait to get around to picking this one up.

+4 votes     reply to comment
Helldigran Dec 11 2012, 6:14am says:

voted :)

+2 votes     reply to comment
Orac| Dec 9 2012, 8:44pm says:

I finally realised that I was willing to buy this for the price it's at. And as it sits, installing right now, I am unexpectedly pleased with the mere 2.1 GB Steam is reporting I will have to download.
If Steam is correct, you've packed a lot of awesome into a quarter of the download size I had been expecting.

+2 votes     reply to comment
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Natural Selection 2
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Released Oct 28, 2012
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