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

Freedoom

The Freedoom project aims to provide all the content needed to form a complete, entirely free/libre game for the Doom engine.

It is designed to be compatible with most custom levels, music, graphics and other modifications (“mods”) made for the original Doom games by Doom fans and artists over the decades.

FreeDOOM

Where to buy official 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

What are core doom iwads gzdoom is looking for?

The IWADS Gzdoom is looking for to be able to run are the following (The RetroDECK Team calls this grouping the CORE IWADS):

File	What is it?	Comments
DOOM1.WAD	Doom 1 - Shareware Version
DOOM2.WAD	Doom 2
DOOM2F.WAD	Doom 2 - French Version
DOOM64.WAD	Doom 64
TNT.WAD	Final Doom - TNT: Evilution
PLUTONIA.WAD	Final Doom - The Plutonia Experiment
HERETIC1.WAD	Heretic - Shareware Version
HERETIC.WAD	Heretic: Shadow of the Serpent Riders
HEXEN.WAD	Hexen
HEXDD.WAD	Hexen: Deathkings of the Dark Citadel	Needs to be loaded with HEXEN.WAD to be played
STRIFE0.WAD	Strife: Quest for the Sigil - Demo Version
STRIFE1.WAD	Strife: Quest for the Sigil - Commercial Version
VOICES.WAD	Extra Voices for Strife	Needs to be loaded with STRIFE1.WAD to be used
CHEX.WAD	Chex Quest
CHEX3.WAD	Chex Quest 3
HACX.WAD	Hacx
freedoom1.wad	Freedoom: Phase 1
freedoom2.wad	Freedoom: Phase 2
freedm.wad	FreeDM
doom_complete.pk3	WadSmoosh combined file

What is doom_complete.pk3?

doom_complete.pk3 is a file made by WadSmoosh. It can combine all of the "DOOM + DOOM 2 + Official addons" into one file where you can select from all the campaigns without needing to load each separate wad.

Where can I find more WADs?

None-official wads (mods) are all over the internet from old forums, github and various websites.

Doomworld:

The oldest DOOM community on the web and hosts of the annual Cacowards.

Doomworld is the lifeblood of DOOM community, generations of knowledge and a vast collections of wads exist within it.

• Doomworld Files
• Doomworld ID Games(Legacy)

Doomwiki:

List of notable WADs

ModDB:

• ModDB

Where to put the games

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

Supported 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