Basically yes. I use Unreal Engine 4 myself personally which is a competitor to Unity which is video game creation software (both are). I'm used to Unreal Engine 4 myself, but figured I'd support Unity a bit here on this one. Unreal Engine 4 was free to use and screw around with before Unity ever was so I got used to Unreal Engine 4. In Unreal Engine 4 you could "test" play it while "developing" it and switch back and forth to test mechanics and play it. So I might change something while I'm "developing" anything in Unreal Engine 4 for fun or whatever then switch to "testing" it to see how it works and such. Unreal Engine 4 can be played as a video game just for fun to mod / screw around with it while being "development" & "testing" all at the same time. I'm 99% sure you can do pretty much close to everything you can do in Unreal Engine 4 in Unity (don't quote me on this for now). I'm going to let "the_old_ones" explain this in the end since I come from Unreal Engine 4 and I've used other programs like blender and such to as well. the_old_ones