Start a new project then, and make sure you’ve selected “3D” under Template. (Unity used to be referred to as Unity 3D, but these days it is just as popular for 2D development.) ...

You can find a bunch of free 3D models to use here (just make sure you check the license before you use the models in a game you intend to sell). Search for ‘gun’ and you should find a few ...

Armory3D is a totally free, open-source 3D game engine. The main shtick with Armory3D is that it fully integrates with Blender, allowing you to create and animate 3D models in a unified workflow.

Lego and Unity have teamed up to help you create mini games in less than an hour without writing a line of code.

Unity at 10: For better—or worse—game development has never been easier If Unity is really letting anyone make a game, what do pros think of the situation?

Namely, Unity’s WebGL deployment support will be free of charge for both free and Pro users. You’ll be able to build a game in Unity’s engine and push it to the web without paying them a dime.