A multi core friendly rigid body physics and collision detection library. Written in C++. Suitable for games and VR applications. Used by Horizon Forbidden West.

Fast (er) implementation of dual contouring which avoids the octree

Minimap scrollbar for qtcreator

C++ bindings for the Godot script API

Level design tools for Unity

The Atomic Game Engine is a multi-platform 2D and 3D engine with a consistent API in C++, C#, JavaScript, and TypeScript

Terrain editor module for godot

Port of Kurt Spencer's java implementation of open simplex noise to C -- Note: This is NOT Ken Perlin's Simplex noise algorithm.

Fast Portable Noise Library - C# C++ C Java HLSL GLSL JavaScript Rust Go

COA Tools is a 2D Animation Suite for blender. It offers a 2D cutout animation workflow similar to programs like spine or spriter.

qTox is a chat, voice, video, and file transfer IM client using the encrypted peer-to-peer Tox protocol.

Official repository for the programming language Squirrel

Lightweight cross platform C++ GUID/UUID library

Premake

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

Angelscript addon: Template Containers brings the STL containers to angelscript

C++ game engine

A C++ poly-voxel prototype

A DCPU16 emulator and assembler written in C++

City builder game

2D shooter game