Valve Hammer Editor

The Valve Hammer Editor (more informally known as Hammer, and previously called Worldcraft) is the ♥♥♥♥♥♥♥♥ mapping tool for the Goldsource and Source engines (which most newer Valve games run under). It is also included in every game made with Source Engine that is not a mod. In this page, the history of the mapping tool is documented.

Valve Hammer Editor