R-cade is a simple, retro, game engine for the Racket programming language with a few, specific goals in mind.

An in-development experimental fork of Urho3D game engine

Rendercore is a proprietary 3D game engine developed in C++ by Renderon Softwares. Officially active since 2025, it is designed for building ambitious, large-scale 3D games with a strong focus on open-world environments, dynamic systems, and immersive gameplay.

Roblox Studio is an all-in-one IDE that lets you create experiences that run on Roblox. It lets you reach millions of users using the Roblox app on console, desktop, and mobile devices.

Rootex is a Windows based 3D multithreaded game engine written in C++

A point-and-click adventure game engine designed with non-programmers in mind and solely for that genre

Silk Engine features the latest graphical technology (HDR Physical Based Rendering, global illumination, raytracing, advanced image post processing, nodal particle system, streaming…), and runs on PC and current generation consoles: PlayStation 5 and Xbox Series.

SpriteWidget is a toolkit for building complex, high performance animations and 2D games with Flutter

T-Engine4 is a roguelike game engine operating in Lua and available for all major platforms

Multiplatform lightweight 2D game-engine, retro-game inspired. Uses OpenGL through GLFW3. Scripted in Lua. Aiming zero run-time dependencies.

A game engine written in Common Lisp, meant to be more of a loose connection of components that can be fit together as required by any particular game

Currently in early access. Assumed to replace Leadwerks.

Unbound is a new engine built around creating with SDF shapes. Quickly bring your ideas to life with powerful game-making tools that are enjoyable for experts and newcomers alike.

Yami RPG Editor is specially designed for making ARPG