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

7 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  (0 - 10 of 1,969)
mrdomosquad
mrdomosquad 19hours 28mins ago says:

when i try and play the game it dosent let me see anything its just black on my moniter ive searched everywere but here so is their a graphics card limit or something? please help!

+1 vote     reply to comment
E.T.E.R.N.A.L.
E.T.E.R.N.A.L. Dec 12 2014, 8:00pm says:

Great mod, but it really ticks me off how striders can be taken down with machineguns and crossbows.

+1 vote     reply to comment
xizaaR
xizaaR Dec 9 2014, 9:34pm says:

Any cheatcodes?

0 votes     reply to comment
Pandango
Pandango Dec 10 2014, 12:05pm replied:

Here are some. :)

"wars_giveresource requisition [amount]"
"wars_giveresource power[amount]"
"wars_giveresource scrap [amount]"
"wars_build_instant 1"
"unitpanel"
"abilitypanel"

0 votes     reply to comment
jezko4 Online
jezko4 Dec 11 2014, 11:34am replied:

Hi, I want use this cheats too but the command for resources seems to do nothing.I tried it without and with [] but I can´t see any changes.Please help if you can.

+1 vote     reply to comment
Pandango
Pandango Dec 12 2014, 2:41am replied:

You need to turn on cheats first by typing "sv_cheats 1" in console. (the cheats have to be put into the console as well)

Lambdawars.com

+1 vote     reply to comment
MMco
MMco Dec 9 2014, 11:31am says:

Hi, nice mod, it's good fun. But just out of curiosity, and sorry if many people have asked this before, but any plan to add the combine tank/APC thing or the Rebel scout car?

+1 vote     reply to comment
HUNTER2K4
HUNTER2K4 Dec 7 2014, 11:19am says:

I have a idea ! Can you make a new upgrade for the Headcrab Shell , upgrade 2 will make those ship spawn 2 Fast Headcrab , upgrade 3 will spawn 2 Poison Headcrab ! And of course depend on what type of Headcrab bite the victim will become standard zombie or fat zombbie or fast zombie ..v...v.. ! And by the way , can you make zombiecombine , i would love to see those type zombie ^^

+2 votes     reply to comment
LonelyAmerican
LonelyAmerican Dec 5 2014, 8:59pm says:

Looks like the Lambda Wars beta is on the steam store and yet to be released. :)

+2 votes     reply to comment
antonpersson99
antonpersson99 Nov 21 2014, 2:01pm says:

Where did the website go?

+1 vote     reply to comment
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Icon
Alien Swarm Icon
Platform
Windows
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Official Page
Lambdawars.com
Release Date
Released Sep 25, 2012
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Community Rating

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9.3

1168 votes submitted.

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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

Style
Genre
Real Time Strategy
Theme
War
Players
Single & Multiplayer
Twitter

Latest tweets from @lambdawars

Check out the Combine Loyal Citizen reskin! T.co

2hours 44mins ago

RT @unitlostgaming: Lambda Wars - Half-Life 2 RTS!?: T.co via @YouTube

Dec 15 2014, 7:59am

RT @brostoevsky: I've been designing the @LambdaWars HL2 RTS mod for over 6 years - now we're a free standalone game on Steam! T.co

Dec 14 2014, 4:49am

We've been building Lambda Wars since late 2007 - where were you then?

Dec 14 2014, 4:42am

RT @bellayari: @LambdaWars remebers me warcraft 3 but in half-life universe, hope u guys finish it!! It amazing

Dec 14 2014, 4:41am

RT @smt923: @LambdaWars stuff like combine helicopters or the dropships, or generally a few more units/buildings, other than that it was su…

Dec 14 2014, 4:41am

RT @smt923: @LambdaWars it was super fun, i've only played as combine vs rebel AI but combine felt a little op (yet to try them), was hopin…

Dec 14 2014, 4:41am

Now that you've played #LambdaWars what do you think of it?

Dec 14 2014, 12:15am

Vote for Lambda Wars in @ModDB's Mod of the Year 2014! T.co (it's under Alien Swarm not HL2) plz RT!

Dec 11 2014, 6:07pm

RT @rockpapershot: Half-Life 2 RTS Lambda Wars has launched standalone on Steam (you might remember the mod as HL2: Wars): T.co

Dec 11 2014, 4:16pm

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