Valve Community

Half-Life 2: Wars is a modification that transforms HL2 into an RTS, pitting the Resistance versus the Combine. It has been in development since 2007 and features many typical strategy game aspects, including basebuilding, fog of war, multiplayer support, and much more.

Counter-Strike HQ covers the latest news, articles, skins, maps, sprites, and everything else Counter-Strike you can imagine. It is also perfect for the third party developers, since you can submit your work (maps, skins, etc) for the entire community to download free.

The Half-Life Saga Story Guide was created in order to provide a concise, accurate, user-friendly overview of the events dealing directly with the events of the Half-Life Saga, and allowing users to easily get a better understanding of the story behind the games. It was written by Chan Karunamuni, with lots of help from contributions from users.

LanManiaX2 is a map and mod resource. But don’t let that simple description fool you, it contains a wealth of news and information.

L4D Inside is a Russian L4D portal.

HL Site is a Russian portal for some of Valve’s games.

Foxhole is the spiritual home of many Hangar16s. The site offers active and mature forums, coupled with in-depth articles and reviews about most aspect of FPS gaming.

“Destructive Studio is a team of mappers that pride themselves in their work by producing new and creative maps for all different games and categories. Our Forums helps to aid mapper by giving them a place where they can post their projects and receive input from other forum members and they are able to see what other mappers have been working on as well.“

Counter-Strike Brasil: Um dos maiores portais de Counter-Strike do Brasil, conteúdo, informação, interatividade, palavras que sempre andam junto com a competência e comprometimento em ajudar o próximo.

HD Games is a Valve games community in Argentina. HD Games es una nueva comunidad en Argentina, sobre los juegos de Valve(CSS,TF2, etc). tiene un espacio de foro y servidores propios, ademas de una muy buena respuesta a la hora de opinar sobre como mejorar la pagina y los servidores.

L4DMods.com covers everything, and I mean everything, related to the L4D community.

Edit Life is a developer resource focusing on map creation for the source engine. The site hosts tutorials and detailed entity lists, error solutions, and soundscape information.