My Aperture Labs: Welcome to the Aperture Science Enrichment Center’s Online Community Networking Web Service (or ASECOCNWS for short). Here at the ASECOCNWS, test subjects may attempt to solve Portal puzzles, build their own Portal puzzle environments, or simply talk about cake.

NEOTOKYO is a first person shooter that provides a visceral & realistic combat experience in a rich futuristic setting. It is greatly influenced by our admiration for Masamune Shirow (GHOST IN THE SHELL) and Katsuhiro Otomo (AKIRA), and has been in production since October 2004.

Obsidian Conflict is a co-operative modification created for Half-Life 2. It is a community based mod with focus on fun, co-operative and physics-related puzzles. The mod has an open story, but is still set in the Half-Life 2 universe.

OzSource is the home of the Australian Gaming Combine. Steam discussion, Community Portal, Gaming news and opinions, critiques, retrospectives. Oz Source has been resurrected from its Half Life 2 Deathmatch origins.

Pájaros de Barro is a Spanish Gaming Community which offers public servers and support (tutorials, videos, forums, articles…) for Team Fortress 2 and Left 4 Dead as well as updated and fully spanish translated news and interviews related to Steam and Source Engine based games.

PCosmos is a great list of Half-Life maps and mods. It is also available in French.

Phenomena On Break is a community brought together by their love of Valve games and games in general. They have used Valve games for over a year to make over one hundred comics based in the Half-Life universe, as well as the use the Source Engine and Gmod to create original universes and characters. They [...]

Ragnarok Arena Remastered is a sidescrolling, platforming multiplayer game – A randomly dispersed armory of more than twenty classic and original weapons from across the history of fragging and levels that capture the true essence of a sidescroller: Insane and without logic. Blast away your friends or blast away monsters and unholy creatures with your [...]

SLUM is Czech Steam community and fan portal about Steam and Valve games.

Source BG is a Bulgarian website focused on the Source community.

Steam Friends covers all the news related to Steam and Valve.

Strider Mountain is a single player mod for Half-Life 2. The mod features new weapons, textures, models, voice acting and plenty of action.