User:Deprecated/Main Page Mockup
Welcome to the Valve Developer Community. Whether you're building a "Triple-A" commercial project or a mod for Half-Life® 2, you'll want to sign up as a Valve developer today. It's free to join, and open to anyone working with the Source Engine and the Source SDK.
Source and the Source SDK
Our knowledgebase of technical information about using the engine and all of the related tools is posted on a community-driven web site called a wiki. Sign up as a developer to contribute.
Dota 2 Workshop Tools
The Dota 2 Workshop Tools is a set of software utilities available as a free download for Dota 2 that allow you to create items for inclusion in the Dota store and the Steam Workshop and your own custom game modes (called addons).
SteamVR Workshop Tools
SteamVR Workshop Tools lets you create and share different environments for SteamVR Home: photogrammetry scenes, game worlds, or anything else that can be represented by a 3D model.
For Mod Teams