• Register

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.

Image RSS Feed Latest Screens
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
Media RSS Feed Latest Video
Downloads RSS Feed Latest Downloads
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  (50 - 60 of 692)
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
johnstar145 Aug 15 2012, 10:50am says:

um, what was the first before this game was release?

+2 votes     reply to comment
xinsavior Aug 17 2012, 8:46am replied:

It was Natural Selection. It was a mod for Half Life, released a while back with basically the same premises as NS2, just with lower graphics and a lot of limitations gameplay-wise. Still probably the most innovative game of its time back then! If you have Half Life, I suggest you give it a try just to see what I mean :)

Though I must say that game did give me motion sickness when I was the aliens.. Haha

+4 votes     reply to comment
darknigthmare Jun 25 2012, 8:44am says:

tested the beta and found this game so amazing great work man

+4 votes     reply to comment
deege123 Jun 15 2012, 8:00pm says:

WHHHHHHHHHHHHHAAAAAAAAAAAAAAAAAAAAAT?????? THIS IS AMAZING!!!!!!!!! Natural selection was the best! and now they made a sequel!!?

+4 votes     reply to comment
KarimIO May 2 2012, 6:37am says:

Hey, guys, I need some support. Not sure where to post this though, but if anyone could help, it'd be much appreciated. I recently gave some money to a friend with access to a credit card to buy the game for me, but he's confused by the site, and so am I.

Should he put in MY email address or his? Should he check buy as gift or not? And will it go to my steam account or be a standalone game?

+2 votes     reply to comment
ScubaSteve3465 Apr 27 2012, 3:10pm says:

I really wish they would have a sale or some kind of coupon to make this game a bit cheaper. I would love to purchase it, but 35 is kinda much for an indie game. I'm not saying it isn't worth it, I'm just saying some kind of sale or deal would really help those, like me, on a budget.

+4 votes     reply to comment
Mkilbride Jun 16 2012, 4:33pm replied:

Totally agree.

35$ is so much, even for the finished product they've promised.

20$ would be a far better price tag.

-1 votes     reply to comment
[TWDEV]_General_Naga Aug 7 2012, 1:26pm replied:

I'm not normally one to jump to a developers defence but having bought the game for 35 USD I have to say I think it's completely justified.

Even as a beta the game feels easily good enough to justify the extra cost. If big studios expect us to pay over the odds for half finished games which are effectively the same why can't Indie developers ask us to pay less for something new and exciting?

A sale would be nice but lets remember folks Indie developers aren't exactly renowned for being cash rich. They need every penny they can get most the time ;)

+4 votes     reply to comment
Post a Comment
click to sign in

You are not logged in, your comment will be anonymous unless you join the community today (totally free - or sign in with your social account on the right) which we encourage all contributors to do.

2000 characters limit; HTML formatting and smileys are not supported - text only

Natural Selection 2
Windows, Linux
Unknown Worlds
Send Message
Official Page
Release Date
Released Oct 28, 2012
Game Watch
Track this game
Community Rating



146 votes submitted.

You Say


Ratings closed.

Real Time Shooter

Latest tweets from

It can take up to a few hours for tweets to begin appearing.

Embed Buttons

Promote Natural Selection 2 on your homepage or blog by selecting a button and using the embed code provided (more).

Natural Selection 2 Natural Selection 2
Natural Selection 2
Last Update
1 year ago
2,167 members