Godot Engine – Multi-platform 2D and 3D game engine

Open Source Computer Vision Library

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

Truly independent web browser

🔍 A Hex Editor for Reverse Engineers, Programmers and people who value their retinas when working at 3 AM.

Compatibility tool for Steam Play based on Wine and additional components

Official mirror of Blender

mold: A Modern Linker 🦠

Frame profiler

A free and strong UCI chess engine

ArduPlane, ArduCopter, ArduRover, ArduSub source

Compatibility tool for Steam Play based on Wine and additional components

Multi-Joint dynamics with Contact. A general purpose physics simulator.

Reliable & unreliable messages over UDP. Robust message fragmentation & reassembly. P2P networking / NAT traversal. Encryption.

Combustion engine simulator that generates realistic audio.

A fast usermode x86 and x86-64 emulator for Arm64 Linux

An open-source 3DS emulator project based on Citra.

The fastest feature-rich C++11/14/17/20/23 single-header testing framework

A tool for recompiling Xbox 360 games to native executables.

Immediate Mode Plotting

ALIEN is a CUDA-powered artificial life simulation program.

Yosys Open SYnthesis Suite

A heap memory profiler for Linux

Icarus Verilog

Arduino library for controlling single-wire LED pixels (NeoPixel, WS2812, etc.)

GCC Front-End for Rust

Functional Programming Library for C++. Write concise and readable C++ code.

Circuit IR Compilers and Tools

Pragmatic microkernel-based OS with fully asynchronous I/O

Verible is a suite of SystemVerilog developer tools, including a parser, style-linter, formatter and language server