Replace .mid music with .ogg

   music { id "unholy.mid" file "unholy.ogg" }


Add music to the main menu (.ogg only)

   music { id "mainmenu" file "menu.ogg" }


Replace sprite with voxel model

   voxel "VOXEL.kvx" { scale 1.00 tile <tilenum> }
   voxel "VOXEL.kvx" { scale 1.00 tile <tilenum> rotate }   //for rotating voxel model


Replace or add png as 8bit tile (extra flag is Blood only)

   tilefromtexture <tilenum> { file "file.png" xoffset 10 yoffset 10 ifcrc 1861973967 extra 0 }


Load .def script for selected addon/mod

   includeif <grp/ini/con name> defname.def


Add file as RFF id (Blood only)

   definefileid "BUNDOWN.QAV" <id>
   rffdefineid "BUNDOWN" "SEQ" <id> "SYSTEM"


Define custom CD music

   Make .cue file with your custom CD tracks
      https://en.wikipedia.org/wiki/Cue_sheet_(computing)#Cue_sheet_syntax



For skyboxes, high resolution textures and 3D models read
http://wiki.eduke32.com/wiki/DEF_Language