Armory 3D is described as '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' and is a game development tool in the photos & graphics category. There are more than 25 alternatives to Armory 3D for a variety of platforms, including Windows, Linux, Mac, Web-based and Flathub apps. The best Armory 3D alternative is Blender, which is both free and Open Source. Other great apps like Armory 3D are Godot Engine, Unity, Unreal Engine and Redot Engine.
Free alternative with better WebGL support.