Duality is a modular 2D game engine / editor combo, written entirely in C# and built on top of an OpenGL backend. It's open source, features an open architecture that invites extensibility and technical ownership, and it embraces C# as a language rather than a scripting...

Wintermute Engine Development Kit is a set of tools for creating and running graphical “point&click” adventure games, both traditional 2D ones and modern 2.5D games (3D characters on 2D backgrounds).

The RPG Toolkit is a free, open source project delivering a simple, flexible and powerful tool for the creation of role-playing games on your personal computer.

Create anything you can imagine with Roblox's free and immersive creation engine. Roblox Studio lets you create anything and release with one click to smartphones, tablets, desktops, consoles, and virtual reality devices.

fgmk is a Python based editor for making retro, 2D RPG games. Games are composed of plain text files, images and a index.html file containing the engine.

A feature-rich, production-ready, general purpose 2D/3D game engine written in Rust with a scene editor. Formerly known as rg3d.

Bring your game ideas and concepts to life with 001 Game Creator, which gives you the power to create a variety of game genres. With simple point-and-click scripting, and high customisability of characters, monsters, items and magic, you can make anything possible.

Tululoo Game Maker is a complex game creation environment that allows you to create browser based games. The program generates a Javascript code that can be played in web browsers using the next generation web standard HTML5.

The OHRRPGCE is a free open-source, cross-platform (Windows, Mac and GNU/Linux), and easy-to-use utility with which you can create your own 2D RPG game in a style similar to the classic Final Fantasy games on the NES, SNES and GBA which have so shaped the RPG genre.

RPGWizard is an open-source 2D game creation tool that specializes in making RPGs. It comes with a graphical editor and browser based game engine, both of which are completely free-to-use.

Hypatia is a game engine for single player 2D action adventure games. You can use it to make a game like Legend of Zelda: Oracle of Ages and Oracle of Seasons. Hypatia is aimed at non-programmers and programmers alike.

Rogue Engine is a full featured environment for game development using WebGL. Create projects in an intuitive and familiar 3D environment using configurable components made with TypeScript.