fheroes2 is a recreation of Heroes of Might and Magic II game engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
Magic Another Game Engine
Solar2D Game Engine main repository (ex Corona SDK)
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
Open Source real-time strategy game engine for early Westwood games
A game framework written with osu! in mind.
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
Svelto ECS C# Entity Component System
Animation Compression Library
Embeddable unity game engine view for Flutter
Opensource crossplatform Fallout 2 game engine writen in C++ and SDL
Amateur 3D Game Engine
Game engine to build text adventures.
Javascript library for making tile based games
RTSish Game Engine
Free and Open Game Programming Language for Windows and GNU/Linux
Game engine for playing tomb raider 1 - 5 levels.
Intrinsic is a Vulkan based cross-platform game and rendering engine
A space race game in the style of A Dark Room
Multi-platform game engine similar to old Megaman with a stage editor
A 3D game engine in java.