A game library for Ruby based on the Gosu library. Offers helpers for animations, physics, input, UI

Tetra is a simple 2D game framework written in Rust. It uses SDL2 for event handling and OpenGL 3.2+ for rendering

DOME is a framework for making 2D games using the Wren language.

A mature cross platform graphics engine designed for high performance games. It was used in major titles like Dead Cells, Dune Spice Wars, Northgard and Wartales.

WASM-4 is a low-level fantasy game console for building small games with WebAssembly

A web framework for building virtual reality experiences

Urho3D is a free lightweight, cross-platform 2D and 3D game engine

An interactive fiction engine for web games, powered by Inkle's ink

A simple Lua framework for rapidly building VR experiences

Inform is a programming language for creating interactive fiction, using natural language syntax

Hotham is an attempt to create a lightweight, high performance game engine for standalone VR headsets, like the Oculus Quest 2

A hand-crafted 2D game library in Go

Playscii is an open-source ASCII art and game creation program with Python scripting.

A minimalist Kotlin Multiplaform Game Engine

nCine is a cross-platform 2D game framework written in C++ with an emphasis on performance, but it is also scriptable in Lua for more flexibility. You can use it to create your games and tools or to learn and experiment with its source code.

2D game engine written in Haxe, with a block based visual scripting system inspired by Scratch

Echo is a game engine which uses many industry-standards for game development

2D Game Engine with Lua Scripting made on top of SFML

Data-driven game engine written in Rust

A combination of an editor and a simple JavaScript library to create game without the cumbersome aspects of HTML5 development

A multi-platform framework for building 2d games, interactive books, demos and other graphical applications

A cross platform game engine that can be used to make simulations of any kind, ranging from simple prototypes to professional 2D and 3D games, simple physics or graphics demonstrations to robust, realistic simulations.

Free and opensource 2D+3D game making for indies

Limon is a multi platform 3D game engine mainly focusing on first person games. Focus of its development is ease of use and ease of study.

Lightweight fantasy console for making retro inspired games

A set of JavaScript libraries, designed to help with a roguelike development in browser environment

Dagon is a game engine especially tailored for adventure games and based on open technologies. Featuring a simple scripting language, blazing fast performance and high portability supporting Windows, Linux and Mac OS X, the project aims to become a reference of the genre.

AllBinary Game Engine is a multi-platform game engine in Java. Entire game engine is also in 100% Kotlin. Supports: Android (Without native libraries in Java or Kotlin), HTML5, J2ME (MIDP), Windows Native (Avian), and J2SE (Java or Kotlin).

A little engine for little games, worlds, and stories

An engine that allows anyone to design, build, and publish amazing 3D and 2D games