Lambda Wars is now a free standalone mod on Steam: Steam Store (December 2014)

Lambda Wars (formerly called Half-Life 2: Wars) brings the struggle between the human resistance and their Combine overlords to a multiplayer real-time strategy setting. The Lambda Wars beta only requires Alien Swarm installed to play. It features 3 multiplayer game modes: Sandbox, Annihilation and Overrun, showcasing the Rebels and Combine playable factions and a full-fledged RTS interface and HUD. There is also a singleplayer tutorial and a handful of singleplayer missions.

As of December 2014, we have released the game on Steam as a free, standalone mod. This means you DO NOT require Half-Life 2, Alien Swarm or any other Source game to download and play Lambda Wars on Steam.

For questions, comments, suggestions, and support for any of our past or upcoming betas, visit our forums or steam community hub.

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Blog RSS Feed Report abuse Latest News: Lambda Wars Beta HL2 RTS Mod Released For Free on Steam

8 comments by Ennui on Dec 9th, 2014

We are proud to announce that Lambda Wars is now officially available for FREE to download on Steam! For those of you unfamiliar with us, we are a completely free Half-Life 2 real-time strategy (RTS) mod formerly known as HL2: Wars and have been in development for over six years with public releases throughout that time. This is our first official Steam release after successfully passing through Greenlight in January 2014.

Our Steam beta release brings with several major changes from our last version, most notably a complete overhaul of the in-game menu UI systems and revising our multiplayer matchmaking system to take full advantage of everything Steamworks offers. On top of that we have also spent a lot of time as usual on improving the mechanics and gameplay balancing and fixing a litany of bugs large and small. Below you can see some of the major UI work that has gone into this release:

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You can go ahead and download it free on Steam right now by visiting our Steam Store page - thanks to Valve's fantastic support of free mods we are happy to announce that you do not need to own HL2 or any other Source games to play this for free! If you have any problems please post in the support section of our forum community.

Why still beta, you ask? Before we release Lambda Wars 1.0 we want to hear YOUR feedback. What works? What doesn't? What could be improved or added or removed? We want to hear from YOU, whether it's on our Steam Community Hub, our discussion forum, Facebook, Twitter or ModDB profiles. If you like what you see, do us a huge favor and spread the word!

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We want to take this moment to thank all of the loyal players who have provided us with feedback over the years, as well as everyone who supported and voted for us in our Greenlight bid and got us into the top ten mods of the year in 2008 and 2010 for ModDB's MOTY vote. Most of all, thanks to Valve Software for being supportive and permissive and allowing us to use their IP and materials to build and distribute a RTS mod of the Half-Life universe we all love so dearly.

Download Lambda Wars for free now on the Steam Store. If you like it, show it by supporting us on Steam Community, our discussion forum, Facebook, Twitter and ModDB and by providing your valuable feedback, bug reports or support requests on our official community forum.

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Lambda Wars 2.3.6 FULL EXE

Lambda Wars 2.3.6 FULL EXE

Jun 9, 2014 Full Version 16 comments

Install Instructions: 1. Run the Installer and follow the instructions. 2. Restart steam. 3. "Lambda Wars" should now appear in your games list. If you...

Lambda Wars 2.3.6 FULL 7z

Lambda Wars 2.3.6 FULL 7z

Jun 9, 2014 Full Version 2 comments

Install Instructions: 1. Extract contents into your sourcemods folder (default location: C:\Program Files (x86)\steam\steamapps\sourcemods). 2. Restart...

Lambda Wars 2.3.5 7z PATCH

Lambda Wars 2.3.5 7z PATCH

May 10, 2014 Patch 4 comments

Install Instructions: 1. Extract contents into your sourcemods folder (default location: C:\Program Files (x86)\steam\steamapps\sourcemods) and overwrite...

Lambda Wars 2.3.5 FULL EXE

Lambda Wars 2.3.5 FULL EXE

May 10, 2014 Full Version 7 comments

Install Instructions: 1. Run the Installer and follow the instructions. 2. Restart steam. 3. "Lambda Wars" should now appear in your games list. If you...

Lambda Wars 2.3.5 FULL 7z

Lambda Wars 2.3.5 FULL 7z

May 10, 2014 Full Version 0 comments

Install Instructions: 1. Extract contents into your sourcemods folder (default location: C:\Program Files (x86)\steam\steamapps\sourcemods). 2. Restart...

Lambda Wars 2.3.4 FULL 7z

Lambda Wars 2.3.4 FULL 7z

Feb 23, 2014 Full Version 1 comment

Install Instructions: 1. Extract contents into your sourcemods folder (default location: C:\Program Files (x86)\steam\steamapps\sourcemods). 2. Restart...

Post comment Comments  (20 - 30 of 1,972)
antonpersson99
antonpersson99 Oct 18 2014, 11:18am says:

When i start the mod it's just black screen :/ I see the loading screen but when the menu comes up i only hear the music. And it crashes after some seconds, It worked before. I have re-installed Alien Swarm, Re-Installed Lambda Wars.

+2 votes     reply to comment
Sander Creator
Sander Oct 18 2014, 1:50pm replied:

Which version worked before?

+3 votes   reply to comment
antonpersson99
antonpersson99 Oct 18 2014, 2:20pm replied:

This version worked, Until yesterday

+3 votes     reply to comment
antonpersson99
antonpersson99 Oct 19 2014, 6:59am replied: +3 votes     reply to comment
antonpersson99
antonpersson99 Oct 21 2014, 5:06am replied:

This is still a problem i'm having

+3 votes     reply to comment
Sander Creator
Sander Oct 22 2014, 2:54pm replied:

Does it just crashes, or does it show an error message?

There's also a file "debug.log" in the lambdawars folder. Can you pastebin that?

+2 votes   reply to comment
antonpersson99
antonpersson99 Oct 24 2014, 2:06pm replied:

Well....First it is a black screen and i hear menu music. Then the game just stops responding. Pastebin.com

+2 votes     reply to comment
antonpersson99
antonpersson99 Nov 3 2014, 9:35am replied:

Bump

+1 vote     reply to comment
antonpersson99
antonpersson99 Nov 15 2014, 12:08pm replied:

Still having this problem :/

+1 vote     reply to comment
antonpersson99
antonpersson99 Nov 15 2014, 1:05pm replied:

Fixed it, Just added this to my launch options: -disabledeferred

+1 vote     reply to comment
Guest
Guest Oct 13 2014, 4:59pm says:

This comment is currently awaiting admin approval, join now to view.

Sander Creator
Sander Oct 18 2014, 1:50pm replied:

You can play offline.

+2 votes   reply to comment
ThexPlaguexDoctor
ThexPlaguexDoctor Oct 12 2014, 8:28am says:

Is there a steam release date?

+2 votes     reply to comment
Pandango
Pandango Oct 12 2014, 3:37pm replied:

We have no release date. However the release will most likely be before the end of 2014.

+3 votes     reply to comment
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Lambdawars.com
Release Date
Released Sep 25, 2012
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Highest Rated (14 agree) 10/10

Very original, very fun, and i see a LOT of great potential for this mod in the long run.

Nov 27 2010, 2:33pm by Heroman117

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Real Time Strategy
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War
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