Valve Community

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.

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

Half-life2.sk is the biggest and the most active fansite in Slovak and Czech Republic. It contains interviews(Barney’s Tales, Project 9, Get a Life and Epidemic), a Left 4 Dead review and news about mods, Steam updates, and podcasts etc.

Zombie Panic: Source is a survival horror MP HL2 modification. Play as either the survivors or the undead, trying to wipe each other out or completing objectives to escape the horror.

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

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.

Half-Life Portal is the biggest German website for Half-Life games, mods and other games from Valve. This web-portal has a community with forums, many news, articles, downloads and informations regarding most of Valve’s games, as well as Steam and third-party Source Engine games.