Cross-platform 2D and 3D game engine with modular architecture
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
Visual Basic 6 2D online adventure game engine
PyCAPGE - Python Classic Adventure Point and Click Game Engine
Rust library to create a Good Game Easily
A game engine for console based text games
A simple tool to allow Chessmaster 10/11 bot customizations
Go 3D Game Engine
A cross platform Lua based game engine
Planimeter Game Engine 2D - LÖVE-based game engine for Lua
TurboSphere is an easy to learn and powerful JS based game engine.
Text Based Game Engine and Parser
Cross-platform 2D game engine
A DirectX based graphics/physics engine
A 2D Java game engine