Open 3D Engine is described as '(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' and is a game development tool in the development category. There are more than 100 alternatives to Open 3D Engine for a variety of platforms, including Windows, Linux, Mac, Web-based and Android apps. The best Open 3D Engine alternative is Godot Engine, which is both free and Open Source. Other great apps like Open 3D Engine are Unity, Unreal Engine, GDevelop and Candlestick.
Leadwerks Game Engine provides the smoothest learning curve to take you from beginner to full-fledged game developer. Use the visual editor and the flowgraph system to set up game interactions without code. Use Lua to write your own game scripts.
United States
Maratis is a portable, simple and visual game development tool designed for artists and developers.
France
EU
Valkyrie is a no-code creative platform that lets designers combine digital assets and create applications and interactive prototypes: where the power of Unity meets the usability of Photoshop.
United Kingdom
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.
EstoniaEU
A cross-platform 2D game prototyping framework based on OpenGL and C++.
Angel balances the speed and flexibility of native code with an eye towards rapid iteration and out-of-the-box functionality. In a world of web games and memory-managed scripting engines, sometimes you still.
Free online 3D Game Maker. Make your own 3D games online! Create Games for Web, Mobile and Desktop. Easy to use.
DragonRuby Game Toolkit is a professional grade 2D game engine. It's tiny (~3.5MB), fast, and cross-platform (including consoles and mobile).
Reality Factory 2 is a next-generation game authoring suite. It combines a flexible, fully scripted game development environment powered by Python with the Ogre3D engine, and supports all major desktop operating systems.
Pixel Game Maker MV allows you to build up your own action game with no programming knowledge necessary. This engine was designed with the idea of giving a voice to people's passions, allowing them to freely express the game that they have held in their hearts.
Japan
