Category:Hammer

If you're already familiar with the Hammer editor and are looking for general mapping help, see the Level Design category.

The Valve Hammer Editor is the tool used for designing levels for Source engine games.

It can be used to:

• Create level architecture - geometry, texturing, and lighting.
• Place models ("props") created in 3D modeling packages.
• Place entities for gameplay.
• Script those entities with Inputs and Outputs.
• Add AI navigation nodes for NPCs.
• Compile and run game levels.