Wiki/wiki-rtd/docs/wiki_engine_guides/gzdoom/gzdoom-guide.md

Guide: GZDoom

GZDoom is the open source game engine for ID Software's older games like DOOM, DOOM2, HEXEN and HERETIC or it's own unique games.

GZDoom Links:

ZDoom Web Page

GZDoom Github

ZDoom Forums

Where to buy DOOM?

We recommend that you at buy both DOOM 1993 and DOOM 2.

DOOM 3 and DOOM 64 are not needed but we list them here because it is sometimes cheaper to buy the whole bundle.

GOG Links:

• DOOM 1993 - GOG
• DOOM 2 - GOG
• DOOM 64 - GOG
• DOOM 3 - GOG

Steam Links:

• DOOM Classic Bundle - Steam
• DOOM 1993 - Steam
• DOOM 2 - Steam
• DOOM 64 - Steam
• DOOM 3 - Steam

Where to put the games

GZDoom games should be put under the retrodeck/roms/doom/ directory.

File types

• .wad - Where's All the Data? file
• .iwad - internal wad
• .pwad - patch wad have priority over iwad
• .pk3 - is a .zip file archive
• .ipk3 - internal pk3 file
• .pk4 - is a .zip file archive
• .pk7 - is a .7zip file archive
• .pke - is a .zip file archive made for the the Eternity Engine
• .epk - is a .zip file archive made for the EDGE engine
• .deh — DeHackEd file, edits hardcoded parts of the DOOM engine.
• .bex — Enhanced DeHackEd file has more features then .deh and used by various ports.
• .lev — A file that renames levels of a .pwad
• .mus — Music file format of DOOM, Heretic, Hexen and Strife

Does GZDoom require BIOS or Firmware?

No

I have bought the games how do I get my files?

Read the:

How to: Extract Doom iWads

I only want to play standard doom and have no interest in modding or customization

Do as said above put the .WAD files directly into retrodeck/roms/doom/ and they will run as normal, enjoy.

I want to play doom with mods

Read the:

RetroDECK .doom file for modding