The best free alternative to Unity is Godot Engine, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Unity and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Unity are Unreal Engine, GDevelop, Candlestick and Stride Game Engine.
The G3D Innovation Engine is a commercial-grade C++ 3D engine available as Open Source (BSD License). It is used in commercial games, research papers, military simulators, and university courses. G3D supports hardware accelerated real-time rendering, off-line rendering like ray...
United States
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.
GeeXLab is a cross-platform demotool for 3D programming, demos creation, game development, interactive applications, creative coding and prototyping.
Platinum Arts Sandbox Free 3D Game Maker is an open source free game maker, free RPG Maker, free sidescroller maker, free Machinima creator, and game design tool that makes it easy for kids and adults to create video games, maps and worlds.
Nau Engine is a versatile and free game engine built on open-source principles. It's designed to be accessible to developers of all skill levels, enabling the creation of a wide range of interactive experiences.
United States
Write JavaScript 2D and 3D games, compile to native. Create, play, and publish from your terminal.
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
Maratis is a portable, simple and visual game development tool designed for artists and developers.
France
EU
Monkey is a modular language. You can create your own custom modules and use other people's - including the awesome box2d and minib3d modules!.
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.
Paraguay
