Shadowgraph
TrendingBuzzTop stargazers
Chrome extension
Sign in

amroibrahim/DIYDoom

An attempt to understand how DOOM engine works

C++

703

51 commits

updated May 7, 2026

See the code

README

Do It Yourself Doom With SDL

This is a personal project, in an attempt to understand how Doom engine works.

Notes 000 - Introduction
Notes 001 - WAD Files
Notes 002 - Basic Map Data
Notes 003 - Adding SDL
Notes 004 - Automap
Notes 005 - Player and Things
Notes 006 - Binary Trees
Notes 007 - BSP Node
Notes 008 - Finding Walls and BSP Traversal
Notes 009 - Sector and Subsector
Notes 010 - Player FOV
Notes 011 - Horizontal Projection
Notes 012 - Solid Walls
Notes 013 - Clipping Solid Walls
Notes 014 - Solid Walls Height (1/2)
Notes 015 - Solid Walls Height (2/2)
Notes 016 - Portals
Notes 017 - Player Height
Notes 018 - Color Palette
Notes 019 - Picture Format
Notes 020 - Texture Format

diy
doom
retro
wad

Significant stargazers

Maik Klein

361 followers · starred Dec 2020

Devin Walters

193 followers · starred Dec 2022

Shawn Walker-Salas

46 followers · starred Dec 2022

Jackie Ng

117 followers · starred Apr 2020

Similar repos

mariuz/castle-doom

Doom levels rendered and played with Castle Game Engine (Object Pascal), with a WebAssembly build

6

alaskahoffman/leandoom

(Lean)DOOM: a native Lean 4 DOOM engine with original-WAD support and kernel-checked movement and…

19

id-Software/DOOM

DOOM Open Source Release

19,727

bradharding/doomretro

The classic, refined DOOM source port. For Windows PC.

779

deios0/cobol-doom

DOOM-style raycaster written in COBOL

3

ESWAT/john-carmack-plan-archive

Collection of John Carmack’s .plan files

1,425

mariuz/firebird-doom

DOOM simulated and rendered inside Firebird SQL, running in the browser via Firebird WASM

4

jdah/doomenstein-3d

Wolfenstein/DOOM style software renderers

1,064

amroibrahim/DIYDoom

An attempt to understand how DOOM engine works

C++

703

51 commits

updated May 7, 2026

See the code

README

Do It Yourself Doom With SDL

This is a personal project, in an attempt to understand how Doom engine works.

Notes 000 - Introduction
Notes 001 - WAD Files
Notes 002 - Basic Map Data
Notes 003 - Adding SDL
Notes 004 - Automap
Notes 005 - Player and Things
Notes 006 - Binary Trees
Notes 007 - BSP Node
Notes 008 - Finding Walls and BSP Traversal
Notes 009 - Sector and Subsector
Notes 010 - Player FOV
Notes 011 - Horizontal Projection
Notes 012 - Solid Walls
Notes 013 - Clipping Solid Walls
Notes 014 - Solid Walls Height (1/2)
Notes 015 - Solid Walls Height (2/2)
Notes 016 - Portals
Notes 017 - Player Height
Notes 018 - Color Palette
Notes 019 - Picture Format
Notes 020 - Texture Format

diy
doom
retro
wad

Significant stargazers

Maik Klein

361 followers · starred Dec 2020

Devin Walters

193 followers · starred Dec 2022

Shawn Walker-Salas

46 followers · starred Dec 2022

Jackie Ng

117 followers · starred Apr 2020

Similar repos

mariuz/castle-doom

Doom levels rendered and played with Castle Game Engine (Object Pascal), with a WebAssembly build

6

alaskahoffman/leandoom

(Lean)DOOM: a native Lean 4 DOOM engine with original-WAD support and kernel-checked movement and…

19

id-Software/DOOM

DOOM Open Source Release

19,727

bradharding/doomretro

The classic, refined DOOM source port. For Windows PC.

779

deios0/cobol-doom

DOOM-style raycaster written in COBOL

3

ESWAT/john-carmack-plan-archive

Collection of John Carmack’s .plan files

1,425

mariuz/firebird-doom

DOOM simulated and rendered inside Firebird SQL, running in the browser via Firebird WASM

4

jdah/doomenstein-3d

Wolfenstein/DOOM style software renderers

1,064