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

JSON for Modern C++

Animated sprite editor & pixel art tool (Windows, macOS, Linux)

Vulkan-based implementation of D3D8, 9, 10 and 11 for Linux / Wine

An open source re-implementation of RollerCoaster Tycoon 2 🎢

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 and Death Stranding 2.

OptiScaler bridges upscaling/frame gen across GPUs. Supports DLSS2+/XeSS/FSR2+ inputs, replaces native upscalers, enables FSR3 FG on non-FG titles. Supports Nukem mod for DLSSG-to-FSR3 FG.

Sol3 (sol2 v3.0) - a C++ <-> Lua API wrapper with advanced features and top notch performance - is here, and it's great! Documentation:

A high performance, editable terrain system for Godot 4.

This is an online course where you can learn and master the skill of low-level performance analysis and tuning.

MacOS Cross-Toolchain for Linux and *BSD

Cryptography Toolkit

Windows Implementation Library

MTuner is a C/C++ memory profiler and memory leak finder for Windows, PlayStation 3/4/5, Nintendo Switch, Android and other platforms

Steam Audio

The Lobster Programming Language

LimboAI - Behavior Trees and State Machines for Godot 4

Cross-Platform Level Editor

Replacement of QtSingleApplication for Qt 5 and Qt 6 with support for inter-instance communication.

VLC-Qt - a simple library to connect Qt application with libVLC

Draw 3D debug graphics and 2D overlays with this add-on.

Filesystem watcher. Works anywhere. Simple, efficient and friendly.

Qt-oriented static code analyzer based on the Clang framework

Screenshot tool.

Immersive spatial audio extension for Godot, using Valve's SteamAudio

A C++ library to create desktop applications

Plugin for procedural generation of 3D trees of varying complexity for Godot Engine.

TrenchBroom Loader for Godot 4. (Alternative to Qodot)

Tool to automate guitar playing using midi files.