Fast PlayStation 1 emulator for x86-64/AArch32/AArch64
Multi Theft Auto is a game engine
One framework for creating powerful cross-platform games
Open source HTML5 game framework that offers WebGL and Canvas
DeSmuME is a Nintendo DS emulator
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Java/JavaFX/Kotlin Game Library (Engine)
Cross-Platform C++ 2D/3D game engine
Powerful, mature open-source cross-platform game engine for Python
Real-time collision detection and multi-physics simulation for VR
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
A fresh & lightweight javascript game engine
The Tiny JavaScript Game Engine That Can!
Rust library to create a Good Game Easily
Doom-based AI research platform for reinforcement learning
A dead simple 2D game library for Go
Write your game with TypeScript in UE or Unity
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
A game framework written with osu! in mind.
Eva.js is a front-end game engine for creating interactive projects
A pure Go game engine
FlightGear Flight Simulator: free open-source multiplatform flight sim
3D Engine c++
GLScene Engine for Delphi & C++Builder VCL Windows 32/64