Official[]
HODOR - can be found on Steam; converts DAE to HOD
RODOH - Steam; converts HW2C HOD to DAE
Unofficial[]
bigDecrypter - for decrypting HomeworldRM ".big" files.
DAEnerys DAE previewer and editor
HODOREST - GUI for HODOR.
Better Collada Exporter - HW Edition - for Blender
HomeworldRM - MaxScripts - for 3ds Max