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, Stride Game Engine, GDevelop and CRYENGINE.
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.
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Unreal Engine is a professional suite of tools and technologies used for building high-quality games across a range of platforms. Unreal Engine’s rendering architecture enables developers to achieve stunning visuals and also scale elegantly to lower-end systems.
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Stride (formerly Xenko) is an open-source C# game engine designed for the future of gaming. It comes with a full toolchain and is especially well suited to create realistic games but allows you much more!.
Japan
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.
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The most powerful game development platform is now available to everyone. Full engine source code. All features. No royalties. No obligations. No license fee.
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Open-source editor runs in browser for making games, animations, and interactive content, offering vector drawing, timeline tools, asset import/export, JavaScript scripting, onion-skinning, plug-ins, and no installation or feature restrictions required.
The completely free and source-available game engine Defold solves the technical issues we all have in common when making games. That way, you can focus on being creative and building a great game.
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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.
microStudio is a free game engine online. Create games, learn programming, play, share, prototype and jam!.
FranceEU
Welcome to the home of GameMaker, the fastest and friendliest cross-platform game development technology out there. GameMaker has been completely redeveloped with usability and efficiency at its core, allowing developers to create games within a single code base and then publish...
United Kingdom
Redot Engine is a feature-packed, cross-platform fork of the Godot 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.
Offers an integrated Gradle build environment for compiling, building, and testing Godot game projects natively on Android, supporting seamless on-device workflows without a PC. Facilitates game development using open-source tools within the Android editor environment.
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