Evergine
The graphics development engine for business and industry
3D Agnostic Editor
 
Falco Engine
Free cross-platform 3D game engine with C# scripting, Bullet physics and OpenAL audio
3D Agnostic Editor
  Flickgame
Flickgame is a game-/story-/thing-making tool. You have sixteen frames, sixteen colors, a few brush sizes, and the means to link together frames via the color menu.
Interactive Fiction Editor
 
FWK
A small, 3D game engine/framework in C, with Luajit and Python bindings
3D Editor
  Game Guru MAX
A 3D game-maker that makes the creation of your game simple, quick and easy – no coding required
3D Agnostic Visual Programming Editor
 
Harfang
3D Real Time engine and visualization tools for the Industry, scientists & education.
3D Agnostic AR/VR Editor
  Hazel Engine
Hazel is a simple-yet-powerful 3D game engine made by Studio Cherno and volunteers, available for use now with big plans for the future.
2D 3D Agnostic Editor
  Isogenic
HTML5 2D and isometric scenegraph-based game engine written entirely in JavaScript
2D Agnostic
 
KaboomJS
A Javascript game programming library that helps you make games fast and fun.
2D Agnostic
  LayaAir
LayaAir is a web-based game engine targetting mobile and web platforms, with integration to the metaverse Layaverse.
2D 3D Agnostic Own Metaverse Editor
  Leadwerks
3D game engine with Hammer style map editor, feature light and LUA scripting support as the standard for coding
3D Editor
  luxe
An easy to learn game engine for making 2D or 3D games. It prioritizes design and workflow for rapidly expressing ideas.
2D 3D Agnostic
  Macroquad
A simple and easy to use game library for Rust programming language, heavily inspired by raylib.
2D Agnostic
 
MANU
A no-code, easy to develop game engine
3D Agnostic Visual Programming Editor
  Maratis
Maratis is a portable, simple and visual game development tool designed for artists and developers
3D Agnostic Editor
  Microsoft MakeCode
A free online learn-to-code platform where anyone can build games, code devices, and mod Minecraft
2D Agnostic Visual Programming Education
 
NcEngine
3D game engine written in modern C++ and Vulkan
3D Editor
  nebula
Nebula is an open-source and free-to-use modern C++ game engine.
3D
  NES Maker
NESmaker is software for PC that allows users to create brand new, hardware playable, cartridge based games for the Nintendo Entertainment System in a modern development environment
2D Agnostic Editor
 
Next2D
An engine that provides a WebGL 2D rendering, a web authoring tool for animation production, and a framework to support team development
2D
  Octo
A high-level assembler for the Chip8 virtual machine, complete with an environment for testing programs, and tools for sharing your creations
2D Agnostic Own Script Language Fantasy Console Editor
 
PICO-8
A fantasy console for making, sharing and playing tiny games and other computer programs
2D Agnostic Fantasy Console Editor
  Pixel Game Maker MV
An engine that allows you to build up your own action game with no programming knowledge necessary
Action 2D Visual Programming Editor
  psxsplash
Design scenes in Unity's editor. Write game logic in Lua. Export to real PlayStation 1 hardware or emulator with a single click.
3D Agnostic Editor
  Puzzlescript
An open-source HTML5 puzzle game engine
2D Puzzle Own Script Language
  Pyrite64
Pyrite64 is a visual editor + runtime-engine to create 3D games that can run on a real N64 console or accurate emulators.
3D Agnostic Editor
  Quadplay
A fantasy console by Shmuel and Morgan at CasualEffects for creating and playing retro-style video games on any device.
2D Agnostic Own Script Language Fantasy Console Editor
 
QX82
A tiny Javascript single-library engine that lets you create games and experiences inspired by the look and feel of a retro 80s computer
2D Agnostic
  RavEngine
A C++20 cross-platform game framework, with emphasis on addressing pain points in existing game engines
3D ECS
  R-Cade
R-cade is a simple, retro, game engine for the Racket programming language with a few, specific goals in mind.
2D Agnostic Fantasy Console