The Doomsday_HQ_Engine.rar file you have requested: Modifications / Miscellaneous / Doomsday HQ Engine - 6.63mb is not available. Perhaps try browsing all files for the game Doom and upload any files you want to share or are missing. This is the only information we could locate:
The Doomsday Engine is an enhanced and extended version of DOOM, Heretic, and Hexen. It was originally based on the Hexen source code but parts of it have later been completely rewritten. Doomsday is only an engine; you will need a Game DLL if you wa Doomsday HQ Engine gives 3D Hardware Support to Games like DOOM, Heretic and Hexen.