It's a pretty alright game, but I recommend change some things. For example, the crosshair cube disappears when going through an object, so I recommend changing it so it can't go through objects. The second thing is having a better player controller. It was really weird to control because it kept moving when I let go of the key. You probably don't have to do this, but maybe add more detail to stuff or change the outside cube colour as green or some different colour.
That's all of the criticism that I have, hope you can improve by them!
That's all of the criticism that I have, hope you can improve by them!