Pixi’VN is a versatile and powerful visual novel/2D game engine. It is based on JavaScript/TypeScript and uses the PixiJS library for rendering.

Kaiju is a game development platform where all game scripting and logic is written in Go, combining the performance of a compiled language with the simplicity of modern syntax

A no-code, open-source, free, and easy 2D/3D game-making app

Luanti (formerly Minetest) is an open-source, cross-platform voxel engine, inspired by Minecraft. Primarily written in C++, utilising the Irrlicht Engine, and it provides an API for users to make games or mods, for existing games, using LUA.

A free, all-in-one, cross-platform game engine that makes it easy for you to create 2D and 3D games.

A quick and easy to use drag and drop retro game creator that can publish games as gameboy ROMs

Open Surge Engine is an open-source 2D retro game engine for creating games using SurgeScript, a scripting language for games.

Modd.io is a low-code game engine where you can play & make games all in a browser with built-in netcode and free server hosting

An extendible WebGPU game and simulation engine for fun, games and research.

Construct 3 is a powerful and user-friendly game development engine without the need for extensive coding knowledge

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).

AnKi 3D Engine - Vulkan backend, modern renderer, scripting, physics and more

C++ Game Engine based on Irrlicht 3D with upgraded Sound Engine, Physics Engine, and Particle Engine