Create account

Jump to: navigation, search

Use of this site is subject to these Terms and Conditions and Steam Subscriber Agreement

Real name is optional. If provided, it may be used to give you attribution for your work.
What is the name of the engine used in such Valve games as Half-Life 2, Portal and in the Source SDK?

Valve Developer Community is made by people like you.

474,513

edits

12,289

pages

72

recent contributors