Wiki/wiki-rtd/docs/wiki_engine_guides/gzdoom/gzdoom-guide.md
2025-01-19 14:36:42 +01:00

9.8 KiB

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.

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?

You will need DOOM + DOOM II.

The games 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:

Steam Links:

What are iwads gzdoom is looking for?

The IWADS Gzdoom is looking for to be able to run are the following:

File What is it? Comments
DOOM.WAD Doom (1993)
DOOM1.WAD Doom (1993) - 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

File type What is it? Comments
.wad Where's All the Data?
.iwad internal wad
.pwad patch wad Have a priority over .wad
.pk3 .zip file archive
.ipk3 internal pk3
.pk4 .zip file archive
.pk7 .7zip file archive
.pke .zip file archive Made for the the Eternity Engine
.epk .zip file archive Made for the EDGE engine
.deh DeHackEd file Edits hardcoded parts of the DOOM engine.
.bex Enhanced DeHackEd Has more features then .deh and used by various ports.
.lev A file that renames levels of a .pwad
.mus Music file Used by DOOM, Heretic, Hexen and Strife

Does GZDoom require BIOS or Firmware?

No

Folder structure

Type Folder Comment
ROMs Folder retrodeck/roms/doom/
Saves Folder retrodeck/saves/doom/gzdoom/
Config Folder ~/.var/app/net.retrodeck.retrodeck/config/gzdoom/ gzdoom.ini
Data Folder ~/.var/app/org.retrodeck.retrodeck/data/gzdoom/ audio folder

GZDoom Controls

Known Issues

  • Multiple controllers for local multiplayer don't really work as there are bugs between GZDoom and Steam Input.
  • You need to have set the primary controller as player one as all the other players input will cause the inputs to loop sometimes. For example if you are docking the Steam Deck and want to use an external controller, set that controller as player 1 via Steam Input and not the Steam Deck.
  • Pressing "Save configuration" within the GZDOOM options menu and you have mods that adds extra controls will wipe those extra controls. It is better just to set the inputs without pressing save as they still will be saved.

Standard Controls

The controls are semi based on the inputs from Timesplitters: Future Perfect for the Playstation 2.

The controls here are described as an Xbox Layout style controller.

Action Button Comment
Primary Fire R2
Secondary Fire R1
Action / Open A
Jump B
Reload Y
Crouch X
Quick Turn R3
Run Toggle L3
Main Menu Start
Open Map Select
Use Item Dpad - Down
Select Item Dpad - Up
Swap Next Weapon Dpad - Right
Swap Previous Weapon Dpad - Left
Movement: Forward / Back + Strafe Left Joystick
Movement: Look Up / Down + Turn Right Joystick

Mod Controls - Extras

Optional extra binds that can come into play for certain Project Brutality or Brutal Doom based mods.

Action Button Comment
Quick Melee / Special Action L1
Throw Grenade / Second Special Action L2 Replaces Zoom (most DOOM mods use Secondary Fire for this anyhow)
Dash R3 Replaces Quick Turn

The mod needs more inputs

Many mods have also more inputs then what is bind-able on a controller, L1, L2, Dpad - Up, Dpad - Down are mostly free for those types of actions.

Try to bind L1, L2 to more action orientated things you need to use more often. While Dpad - Up, Dpad - Down for things you use less often like Extra Menus.

If it is a new movement type that can replace quick turn try to bind it on R3 and replace Quick Turn or either of the L1 or L2.

You are also free to change any of the Default binds shipped by RetroDECK and if you mess something up you can always reset GZDoom via the Configurator.

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

Read the:

How to: Extract Doom iWads

I want to play doom with mods

Read the:

RetroDECK .doom file for modding