The best Animation Maker alternative to Unity is Armory 3D, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Unity and three of them are Animation Makers so hopefully you can find a suitable replacement. Other interesting Animation Maker alternatives to Unity are Verge3D and Alice.
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.
Verge3D is a powerful and intuitive toolkit that allows Blender, 3ds Max or Maya users to create immersive web-based experiences. Verge3D can be used to build interactive animations, product configurators, engaging presentations of any kind, online stores, explainers, e-learning...
Verge3D is much better fit for the Web than Unity and smoothly works in mobile browsers.
Verge3D comes with much better WebGL support.
Because on the website the description is that it makes web interactives, not games.
Almost everyone thinks Verge3D is a great Unity alternative.
Verge3D is the most popular commercial alternative to Unity.
Alice is an innovative 3D programming environment that makes it easy to create an animation for telling a story, playing an interactive game, or a video to share on the web. Alice is a teaching tool for introductory computing.
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Fully integrated to last builds of Blender 3d, very powerful, and multiplatform ;