So the first tool that I'm going to mention is, of course, going to be Unreal Engine 4.

We use Unreal Engine 4 to make Satisfactory.

So if you don't really know what a game engine actually is, it's just essentially a suite of tools that provide you tools in order to render stuff or play audio or do animations, programming.

That's essentially what it is.

And so engines don't necessarily have to have fancy UI or anything to them, but Unreal Engine is actually just kind of like a general purpose tool that can be used to make many different kinds of games or applications.

And so it has a nice interface and a lot of extra tools in it as well.