# Doom III

Game engine to play Doom 3 and Resurrection of Evil. {% embed url="" %} {% embed url="" %} ## Information


Emulators	Libretro: boom3 Libretro: boom3_xp dhewm3
File folder	📂 roms \ 📂 doom3
File extension	.boom3 .game

## Bios Information No BIOS required. ## Controls ### Boom3: boom3 allows you to choose between 2 controller layouts from RetroBat menu.

Retrobat Button	Classic	Modern
START	Show/Hide Menu	Show/Hide Menu
SELECT	Show/Hide Map	Show/Hide Map
D-PAD	D-PAD	D-PAD
Left analog stick		X-axis: strafe Y-axis: move forwards and backwards
Reft analog stick	Control Mouse cursor (in menu)	Look. Control Mouse cursor (in menu)
	Run	Quick save
	Use	Menu cancel
	Fire	Menu select
	Strafe	Quick load
L1	Strafe Left	Previous Weapon
R1	Strafe Right	Next Weapon
L2	Previous Weapon	Use
R2	Next Weapon	Fire
L3		Toggle run
R3		180 turn

### Dhewm3:

Retrobat Button	Action
D-PAD	Forward Backward Move left and right
Left analog stick	Forward Backward Move left and right
Reft analog stick	Look up/down Left/Right
	Speed
	Move Up
	Move Down
	Zoom
L1	Impulse 13
R1	Fire
L2	Impulse 15
R2	Impulse 14

## Specific system information ### File organization Boom3 and Dhewm3 need a file with the extension .boom3 to be placed in the `roms\doom3` folder of your RetroBat installation. (dhewm3 also accepts .game extension) The .boom3 (or .game) must point to the subfolder and pak000.pk4 file:

Boom3 and dhewm3 require original .pk4 files from the Doom3 game and the Resurrection of Evil addon, you'll need the game data from a Doom3 installation patched to 1.3.1. Specifically, you'll need the following .pk4 files (base folder contains the original game data, d3xp contains the Resurrection of Evil game data): ``` └── roms/ └── boom3/ ├── Doom 3.boom3 ├── Doom 3 - Resurrection of evil.boom3 ├── base/ │ ├── pak000.pk4 │ ├── pak001.pk4 │ ├── pak002.pk4 │ ├── pak003.pk4 │ ├── pak004.pk4 │ ├── pak005.pk4 │ ├── pak006.pk4 │ ├── pak007.pk4 │ └── pak008.pk4 └── d3xp/ ├── pak000.pk4 └── pak001.pk4 ``` ### Dhewm3: run custom command lines With dhewm3 emulator, it is possible to run specific user-defined command lines, to do so, open the rom file with a txt editor and add the command lines to be added in a second line:

In the example above, RetroBat will run the bloodmod and add the following commands: ``` +set com_allowconsole 1 +set g_gib_power 100 +set g_gib_shadows 1 ``` ### Mods Dhewm3 can run mods. The list of mods can be found on the [game engine webpage](https://dhewm3.org/mods.html). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://wiki.retrobat.org/systems-and-emulators/supported-game-systems/others/doom-iii.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.