Nikolai Wuttke-Hohendorf

linuxmd. Linux for the Sega MegaDrive

f15se2-ex. Port of the reconstructed MS-DOS game F-15 Strike Eagle 2 to modern architectures, with bugfixes and enhancements

openprototype. Rust

CompatLib. Compatibility library for re-establishing Windows XP SP-3 support in VS2019

RigelEngineUWP. RigelEngine fork with a minimal Xbox UWP dev mode port using SDL2 and ANGLE.

minivorbis. Single-file port of libogg and libvorbis for decoding ogg sound files.

SpinalVoodoo. SpinalHDL implementation of the 3dfx Voodoo Graphics GPU

HImGuiImageManager. designed to streamline image loading, display, and management. It supports loading images from files, memory, or URLs, with built-in GIF animation support, image buttons, and custom drawing capabilities. Perfect for creating dynamic and visually rich ImGui interfaces.

RemoveWindowsAI. Force Remove Copilot, Recall and More in Windows 11

easyav1. An easy to use WebM demuxer and AV1/Vorbis software decoder.

Win11Debloat. A simple, lightweight PowerShell script that allows you to remove pre-installed apps, disable telemetry, as well as perform various other changes to declutter and customize your Windows experience. Win11Debloat works for both Windows 10 and Windows 11.

imgui_entt_entity_editor. A drop-in entity editor for EnTT with Dear ImGui

rebind. 🎲 Simple, compiler agnostic, C++23 reflection library (for aggregates and enums)

vk-gltf-viewer. Blazingly fast Vulkan glTF Viewer

hocus. C

Skribidi. Nimble bidirectional text stack for UIs

edit. We all edit.

WindowsUI. Collection of minimal examples for each Windows UI framework / API using CMake

ReflectionHLE. Ports of Keen Dreams, the 3D Catacomb games and Wolfenstein 3D and derived games, and BioMenace (DOS)

Evertop. E-ink IBM XT clone with solar power, ultra low power consumption, and ultra long battery life.

Spice86. Reverse engineer and rewrite real mode DOS programs!

SDL_gpu_examples. Example collection for the SDL_GPU API

ImGui-Blur-Filter-Dx12. Gaussian blur for ImGui in Dx12

stroemung. A Computational Fluid Dynamics (CFD) simulator in Rust

custom_game_engines. A comprehensive list of custom game engines

CnC_Renegade. Command and Conquer: Renegade

utfcpp. UTF-8 with C++ in a Portable Way

koolness. source code of koolnESS ESFM musicdisk

swar. Low level, branch-free functions for number and string conversion and other utils

tdinfo-parser. Turbo/Borland debug information parser for IDA

crypto-algorithms. Basic implementations of standard cryptography algorithms, like AES and SHA-1.

libschrift. A lightweight TrueType font rendering library

bit7z. A C++ static library offering a clean and simple interface to the 7-zip shared libraries.

physfs. A portable, flexible file i/o abstraction.

liquidfun. 2D physics engine for games

doompdf. A port of Doom (1993) that runs inside a PDF file

SierraDeathGenerator. Generate fake screenshots from video games

vbesvga.drv. Modern Generic SVGA driver for Windows 3.1

magic_args. Ease-of-use-first argument parsing for C++23

kinetoscope. Kinetoscope: A Sega Genesis Video Player

can-it-run-doom. A website to track all the wonderfull people who ran Classic Doom on all sorts of devices.

alarmo_doom. Doom for the Nintendo Alarmo

stm32doom. Chocolate Doom port to STM32F429 evaluation board

dirtree. Render directory trees as pretty pictures

SDL_shadercross. Shader translation library for SDL's GPU API.

win98-quickinstall. A framework + installer to (very) quickly install Windows 98 on anything from a 486 up to a modern system

rawdrawandroid. Build android apps without any java, entirely in C and Make

sdl2-compat. An SDL2 compatibility layer that uses SDL3 behind the scenes.

steamshim. A workaround for GPL software that wants to use the Steamworks SDK.

patcher9x. Patch for Windows 9x to fix CPU issues

Fenestra. 🫧 An ImGui-based UI system to defenestrate all others

gigi. A framework for rapid prototyping and development of real-time rendering techniques.

DSMapStudio. A standalone map/level editor for Demon's Souls, Dark Souls 1/2/3, Bloodborne, Sekiro, and Elden Ring.

SoulsFormatsNEXT. A .NET library for reading and writing FromSoftware file formats.

dear_bindings. C header (and language binding metadata) generator for Dear ImGui

EmperorLauncher. Patches to make Emperor: Battle For Dune work on a modern system

3dpinball-nds. Port of Space Cadet Pinball decompilation to Nintendo DS

f15se2-re. Reconstructed source code for the Microprose game F-15 Strike Eagle 2 for MS-DOS

AssetCooker. Asset Cooker is a build system aimed at game assets, for custom engines. It's FAST! It leverages Windows' USN journals to robustly track which files change, and only cook what needs to be cooked.

picogus. Emulation of ISA sound cards and CD-ROM on Raspberry Pi Pico (GUS, SB/Adlib, MPU-401, Tandy, CMS, Panasonic CD-ROM) with USB mouse/joystick support

idgrab. A header generator for ID-engine (Keen: Galaxy) games

demo-pd-cranktheworld. A real-time rendering demo for Playdate console

GLaBIOS. A modern, scratch-built, open-source (GPLv3) alternative ROM BIOS for PC, XT, 8088 Clone or Turbo PCs.

did-you-actually-check-my-github. This repository exists entirely to check if employers opened up my GitHub account.

crstl. Alternative STL aims to compile fast, runs fast, written in clear code, simple to read and understand

CKGBA. A port of Commander Keen: Goodbye Galaxy for the Gameboy Advance

pfr. Rust

miniaudio. Audio playback and capture library written in C, in a single source file.

dis86. A disassembler and decompiler for 8086 DOS Binaries

Descent3. Descent 3 by Outrage Entertainment

Nuked-SC55. Roland SC-55 series emulation

flux. A C++20 library for sequence-orientated programming

reflect. C++20 Static Reflection library

area51. Source code for Area 51 (2005)

fpPS4. PS4 compatibility layer (emulator) on Free Pascal

SafeDiscShim. SafeDiscShim is a compatibility tool that allows for SafeDisc protected games which utilize the insecure Macrovision Security Driver ("secdrv.sys") to run on modern versions of Windows .

compute. Experiments with OpenGL compute shaders, documented in my blog lisyarus.github.io/blog

keen4-6. Commander Keen source code reproduction mirror

SpecialK. Lovingly referred to as the Swiss Army Knife of PC gaming, Special K does a bit of everything.

rvx-projector. Blender add-in for projecting pixel art

DosView. Minimal image converter/viewer for MS-DOS

OpenCiv1. Free and Open Source (FOSS) preservation effort and rewrite of the iconic Civilization Game designed by Sid Meier and Bruce Shelley in year 1991

imgui-notify. A (very) simple notification wrapper for Dear ImGui

trdrop. trdrop - a raw video analysis program

perfect_dark. A decompilation of Perfect Dark. (MIRROR of https://gitlab.com/ryandwyer/perfect-dark)

dosraptor. Original Raptor Call Of The Shadows version 1.2 DOS source code

vsync_simulator. C++

wipeout-rewrite. C

ozz-animation. Open source c++ skeletal animation library and toolset

jazz2-native. 🎮 · Jazz² Resurrection: Native C++ reimplementation of Jazz Jackrabbit 2

magic-wormhole. get things from one computer to another, safely

isle. A decompilation of LEGO Island (1997)

decomp.me. Collaborative decompilation and reverse engineering website

doomgeneric. Easily portable doom

keensource456tandy. Commander Keen 4 Tandy 320x200 16 color source code port

mzretools. Tools for reversing DOS games, primarily inspection of MZ executables

librashader. RetroArch Shaders for All

SDL_ttf. Support for TrueType (.ttf) font files with Simple Directmedia Layer.

theoraplay. A small C library to make Ogg Theora decoding easier.

cpp-channel. C++11 thread-safe container for sharing data between threads (synchronized queue)

DukeNukemZeroHour. A decompilation of Duke Nukem Zero Hour

sm. early version

asm-differ. Assembly diff script

SBEMU. legacy sound blaster emulation for DOS

liboplhw. A library for using real OPL2 synth chips via ALSA's hwdep interface.

iir1. DSP IIR realtime filter library written in C++

skifree_decomp. SkiFree decompilation project

pocketpy. Portable Python 3.x Interpreter in Modern C for Game Scripting

cftf. Clang from the Future: A C++17 to C++11 source-to-source compiler

Git-Heat-Map. Visualise a git repository by diff activity

OffsetAllocator. Fast O(1) offset allocator with minimal fragmentation

WolfensteinCGA. Wolfenstein 3D with a CGA renderer

minifb. MiniFB is a small cross platform library to create a frame buffer that you can draw pixels in

strong_type. An additive strong typedef library for C++14/17/20

softhddi. DOS TSR that provides simulated hard disk activity LEDs and seeking sounds

smolnes. NES emulator in <5000 bytes of C

vhs. Your CLI home video recorder 📼

Jerrica. Jerrica is a small, bare bones, 100% scheduled, web audio native, MOD player designed to be embedded in Javascript games

cdcEngineDXHR. Decompilation of Deus Ex: Human Revolution

MSPBuildSystem. Mac Source Ports Build System

RigelEngine. A modern re-implementation of the classic DOS game Duke Nukem II

Duke2Reconstructed. Reconstructed source code of the game Duke Nukem II

ReC98. The Touhou PC-98 Restoration Project

quake_watch. Quake 1 game port to Apple Watch

Windows10Debloater. Script to remove Windows 10 bloatware.

liblava. Modern and easy-to-use library for Vulkan

REminiscence. REminiscence is a re-implementation of the engine used in the game Flashback made by Delphine Software.

Animator-Pro. A classic paint program originally for dos

stb. stb single-file public domain libraries for C/C++

Consent-O-Matic. Browser extension that automatically fills out cookie popups based on your preferences

carbon-lang. Carbon Language's main repository: documents, design, implementation, and related tools. (NOTE: Carbon Language is experimental; see README)

sbc-bench. Simple benchmark for single board computers

awesome-cold-showers. For when people get too hyped up about things

compiler-explorer. Run compilers interactively from your web browser and interact with the assembly

cosmodoc. The semi-complete teardown of Cosmo's Cosmic Adventure.

SlotMap. A slot map is a high-performance associative container with persistent unique 32/64 bit keys to access stored values.

perf-challenge6. Python

io.github.lethal_guitar.RigelEngine. Shell

playimf. A small, simple but very accurate IMF music player for MS-DOS.

Microsoft-3D-Movie-Maker. This is the source code for the original Microsoft 3D Movie Maker released in 1995. This is not supported software.

loguru. A lightweight C++ logging library

DDrawCompat. DirectDraw and Direct3D 1-7 compatibility, performance and visual enhancements for Windows Vista, 7, 8, 10 and 11

PowerVR-Series1. Original source code for the PowerVR Series 1 GPUs : Midas Arcade, PCX1 and PCX2

hotspot. The Linux perf GUI for performance analysis.

RigelEngine. A modern re-implementation of the classic DOS game Duke Nukem II

sdljam. C++

FLYBY2. Old Screensaver Recovered from my Backups

ini-lite. Very basic INI parser with limited functionality

robin-map. C++ implementation of a fast hash map and hash set using robin hood hashing

Sharp-Bilinear-Shaders. sharp bilinear shaders for RetroPie, Recalbox and Libretro for sharp pixels without pixel wobble and minimal blurring

sb-firmware. Assembly

OpenLara. Classic Tomb Raider open-source engine

data-oriented-design. A curated list of data oriented design resources.

glsl-shaders. This repo is for glsl shaders converted by hand from libretro's common-shaders repo, since some don't play nicely with the cg2glsl script.

hqx-shader. GPU shader version of HQx filter

FrameTimingControl. Sample code for frame timing control

fpng. Super fast C++ .PNG writer/reader

Rigelengine-RPi. rigelengine for Duke Nukem 2 on the Pi4

Polybox. Late ninties, PS1 inspired fantasy console

fmt. A modern formatting library

exodus. Painless relocation of Linux binaries–and all of their dependencies–without containers.

threepp. A cross-platform C++20 3D library with the high-level API of three.js

readerwriterqueue. A fast single-producer, single-consumer lock-free queue for C++

atomic_queue. C++14 concurrent lock-free low-latency queue.

TuiCss. Text-based user interface CSS library

asmrepl. A REPL for x86-64 assembly language

Quake-4-Source-Code. C++

hyperfine. A command-line benchmarking tool

qoi. The “Quite OK Image Format” for fast, lossless image compression

ctpg. Compile Time Parser Generator is a C++ single header library which takes a language description as a C++ code and turns it into a LR1 table parser with a deterministic finite automaton lexical analyzer, all in compile time.

CppDeveloperRoadmap. The roadmap for learning the C++ programming language for beginners and experienced devs.

SDLPoP. An open-source port of Prince of Persia, based on the disassembly of the DOS version.

gnome-shell-extension-inotch. Add a useless notch to your screen.

lba1-classic. Assembly

fluidsynth. Software synthesizer based on the SoundFont 2 specifications

MSDN_OPENGL_Samples. The old Windows NT OpenGL samples/SDK from an MSDN CD.

SpaceCadetPinball. Decompilation of 3D Pinball for Windows – Space Cadet

pcbios. The big project that I am most likely to finish.

ISA_EGA_CHIPS. This board is and EGA clone based on a reversed PA-WTEGA card, based on the chipset by CHIPS (P82C435 + P82A436).

dos-like. Engine for making things with a MS-DOS feel, but for modern platforms

ntvdmx64. Run Microsoft Windows NTVDM (DOS) on 64bit Editions

bawr. SVG/Font Icon processing tool for C++

tweetdoom. using steganography for image encoding to twitter

doslinux. Run Linux programs on DOS

opzioni. The wanna-be-simplest command line arguments library for C++

raptor. C++

snark-barker. A 100% compatible replica of the famed SB 1.0 sound card

voltage-blaster. -5V voltage provider

RetroWave. Authentic sounds from vintage sound chips, on modern hardware!

vmcontainer. Virtual memory based containers

Pixel-Art. We implement the famous "Depixelizing Pixel Art" paper by Kopf and Lischinski

7.css. A JS-independent, tree-shakeable CSS framework for building faithful recreations of the Windows 7 UI.

kiloblaster. SDL port of the DOS game Kiloblaster

RetroOZ. RetroOZ Odroid Hardkernel Go Super and Powkiddy RGB 10 Max firmware

luxtorpeda. Steam Play compatibility tool to run games using native Linux engines

packages. Package build scripts and support for luxtorpeda client

RustPython. A Python Interpreter written in Rust

virtual_vec. C++

OpenJK. Community effort to maintain and improve Jedi Academy (SP & MP) + Jedi Outcast (SP only) released by Raven Software

modern-cpp-features. A cheatsheet of modern C++ language and library features.