Linux kernel source tree

OBS Studio - Free and open source software for live streaming and screen recording

TLS/SSL and crypto library

Simple DirectMedia Layer

A simple Minecraft clone written in C using modern OpenGL (shaders).

TIC-80 is a fantasy computer for making, playing and sharing tiny games.

A MMOG engine of server.

Classic Tomb Raider open-source engine

Gravity Programming Language

bash and zsh shell history suggest box - easily view, navigate, search and manage your command history.

An open source re-implementation of Caesar III

The official Allegro 5 git repository. Pull requests welcome!

An open source re-implementation of Caesar III

bpftune uses BPF to auto-tune Linux systems

Modular and configurable OS for embedded applications

A free, single-player roguelike dungeon exploration game

Lightweight JSON library written in C.

Improved Quake III Arena engine

Brogue: Community Edition - a community-lead fork of the much-loved minimalist roguelike game

A collection of tools and algorithms for developing traditional roguelikes. Such as field-of-view, pathfinding, and a tile-based terminal emulator.

Official repository of the OpenJPEG project

Free 2D graphics engine with raster effects for retro/classic style game development

A C library for reading, creating, and modifying zip archives.

id Software's Quake 2 v3.21 with mission packs and Vulkan support (Windows, Linux, macOS, FreeBSD, Raspberry Pi 4)

Real-time path tracer VKPT integrated into q2pro Quake 2 client.

An easy to use, easy to deploy crypto library

The open source, cross platform level editor for idtech games

Midnight Commander's repository

OpenNox main repository.

The official mirror of the main KolibriOS repository