Valve

Valve is an entertainment software and technology company founded in 1996. In addition to creating several of the world's most award-winning games, Valve is also a developer of leading-edge technologies including the Source game engine and Steam, the premier online gaming platform.

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Half-Life 2
Paid
From canals to citadel
Windows
Team Fortress 2
Free
Team Fortress 2: Timeless Free-to-Play Combat
Windows
Counter Strike: Source
Paid
Counter-Strike: Source: Classic Teamplay, Modern Engine
Windows
Counter Strike: Global Offensive
Paid
CS: GO Expands Classic Team Action Gaming
Windows
Half-Life 2: Episode One
Paid
Half-Life 2: Episode One Battle for City 17
Windows
SteamOS Default
Free
Combine the rock-solid architecture of Linux with a gaming experience built for the big screen.
Linux
Dota 2
Free
Dota: Deep Strategy Meets Stunning Visuals
Windows
Steam Chat
Free
Take your Steam friends, groups, and conversations with you wherever you go.
Android
Steam
Free
Steam: The Ultimate PC Gaming Platform
Windows
Steam
Free
Play, connect, and create various content.
Mac
Half-Life Complete
Paid
Valve's Half-Life Franchise: A Definitive Collection
Windows
Portal
Paid
Solve physical puzzles and challenges by opening portals to maneuvering objects through space.
Windows
Half-Life 2: Episode Two Research and Development Mod
Free
Half-Life 2 Mod Focuses on Puzzles, Gravity Gun
Windows
Alien Swarm
Free
Team up with your friends and hunt down the bugs with squad-level tactics.
Windows
Half-Life 2
Paid
Half-Life 2: A Gripping Sci-Fi Shooter Adventure
Windows
Valve Complete Pack
Paid
Valve's Ultimate Game Bundle Delivers Immense Value
Windows
SteamOS Custom
Free
Combine the rock-solid architecture of Linux with a gaming experience built for the big screen.
Linux
RoboBlitz demo
Free
RoboBlitz: Humorous Physics Action Adventure
Windows
Source Filmmaker
Free
Source Filmmaker: Create Movies in the Source Engine
Windows
Steam Mobile
Free
Comprehensive App for Gamers on iPhone
iOS
Gunman Chronicles Datacore map
Free
Datacore Map Added to Gunman Chronicles
Windows
Left 4 Dead 2
Paid
Left 4 Dead 2: Dynamic Zombie Co-op FPS Action
Windows
Counter-Strike Condition Zero
Paid
Counter-Strike: Condition Zero Offers Extensive Single and Multiplayer Content
Windows