Lambda Wars (formerly 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.
ZIP version of the client installer for the Beta 1.0.4 PATCH of HL2: Wars.
Wars 1.0.4 changes
* Server infinite changing maps due the old Python gamerules not always being cleaned up properly
* Stalker unit sometimes not responding to orders after doing the repair/construct ability
* "Destroy all links" ability of the Combine Shield Generator broken
* Combine soldier death sound
* Navigation mesh tweaks or_trapped, or_crashed and or_hot_sand
* Abilities that are not usable from the abilitypanel are now filtered
* Removed maximum wave size limit of 500