What is Hammer Editor?
Hammer Editor, officially Valve Hammer Editor, is the level design tool developed by Valve for creating maps for games built on the GoldSrc and Source engines. It provides brush-based geometry construction, entity placement, and 3D viewport rendering for building game environments.
Files Hammer Editor opens
Game Files
Click any badge for full per-format details - what it is, how to open it and how to convert it.
