DIABDAT.MPQ is the primary data archive for the original Diablo (1996)
: To run this popular modern engine (which allows for high resolution and bug fixes), you simply place your legitimate DIABDAT.MPQ into the DevilutionX folder [1]. GOG.com Version diablo 1 diabdatmpq
: The grim atmosphere and terrifying monsters. DIABDAT
"sfx\death\player\warrior01.wav" over a pile of bones. Change monster stats (HP, damage, resistances)
Verdict
If you own the Diablo: Hellfire expansion, the file structure is slightly different.