Open Source Application Building Tools, Game Engines

Open Surge is a fun 2D retro platformer inspired by Sonic games and a game creation system that lets you unleash your creativity!.

OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented, flexible 3D engine written in C++ designed to make it easier and more intuitive for developers to produce applications utilizing hardware-accelerated 3D graphics.

GDevelop is an open-source game making software designed to be used by everyone. Any kind of 2D games can be created with it and no programming skills are required to get started. Logic of games are made using visual events.

Dead Deer is a 3D modeler, 3D game maker, and a 3D demo maker designed to create games.

Verus Engine is a modern, platform-agnostic 3D game engine. It is developed using C++ and HLSL. It is based on Direct3D 12 and Vulkan graphics APIs. The code is user friendly and well optimized.

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

Wicked Engine is an open-source game engine written in C++. The main focus is to be easy to set up and use, light weight, high performance, and graphically advanced. The full source code is provided with the MIT license, which means, anyone is free to use it for anything without...

Torque 3D is a easy-to-use game creation platform. Architected from the ground up for maximum flexibility and performance across a wide range of hardware and built upon the Frontline award-winning Torque Game Engine Advanced, Torque 3D comes equipped with a full suite of tools...

Armory is an open-source 3D game engine with full Blender integration, turning it into a complete game development tool. The result is a unified workflow from start to finish, making you work faster. No more jumping between different applications.

Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D engine that enables developers and content creators to build AAA games, cinema-quality 3D worlds, and high-fidelity simulations without any fees or commercial obligations.

A extremely powerful application to make games in python as well as in visual programming

The Blender Game Engine (BGE) is a component of Blender, a free and open-source 3D production suite, used for making real-time interactive content. The game engine was written from scratch in C++ as a mostly independent component, and includes support for features such as Python...

Godot Engine is a feature-packed, cross-platform game engine to create 2D and 3D games from a unified interface. It provides a comprehensive set of common tools, so that users can focus on making games without having to reinvent the wheel.

MCreator is a software used to make Minecraft mods and data packs using intuitive easy-to-learn interface or with an integrated code editor.