Revision as of 10:12, 2 September 2015 by Dr. Orange(talk | contribs)(Removed links at top since they weren't directly related to Half-Life level design specificly, and would better fit Source Engine level design hubs.)
JACKHAMMER
A newly released modified version of the GoldSource Engine created by Russian modders. JackHammer offers many additional features for level editing and modding for Half-Life, as well as Quake 2 and 3. JackHammer is currently in Alpha form.
SLEDGE EDITOR
A replacement to Valve's GoldSource Engine, Sledge is still currently in it's Alpha form.