User Interface Kit – Monolith (Preview of Main Page)

Welcome to the Valve Developer Community

Introduction

Whether you're building a triple-A commercial project or a modification for Half-Life 2, you'll want to sign up as a Valve developer today. It's free to join and is open to anyone working with the Source engine and its software development kit.

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Development

Everything about game development, level design and much more using Valve Technology.

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Wiki Editing

Everything about editing articles, templates and much more related to this wiki.

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The engine under the hood of Half-Life 2 can make your game a success. Let Source™ do the heavy lifting so that your team can focus on building great games.

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If you're interested in building a product using Source or Source 2, talk to us about options for distribution on Steam.

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