Modders are now capable of: *

exists is due to a historic technical oversight. In the late 90s, a debug build of the PC version was accidentally left inside a sub-archive called D1221A.MPQ , which was hidden within the main DIABDAT.MPQ

: If you do not own the full game, you can use shareware.mpq (the trial version asset file) with DevilutionX to play the shareware portion of the game for free.

: Modern TCP/IP networking that bypasses the broken legacy Battle.net protocols. How to Locate and Use DIABDAT.MPQ

Note: If you own the Hellfire expansion, you can also copy hellfire.mpq , hfmonk.mpq , hftest.mpq , and hfvoice.mpq into the same folder to unlock the extra chapters and classes. The Legacy of Diablo's Preservation

today, the DIABDAT.MPQ file is the essential "data" file containing all the game's assets (graphics, sounds, and levels). How to use DIABDAT.MPQ in 2021/Modern Era

I can provide more specific instructions based on your setup.