I had the... *ahem* "chance" of trying out No Man's Sky at a friend (and not to fork 60 bucks for something that has less content than a lot of $5 game).
After one or two hours I had successfully seen all the game had to offer, and I didn't have much fun doing it.
Your game is pretty much spot on in parodying why the game feels so empty, slow, and simply not fun.
Every little thing that annoyed me in No Man's Sky I also found in your parody.
I commend you for showing both how relatively easy it is to replicate most of the gameplay in a 2D version with a lot less means that those of the official game, all the while proving the end result simply isn't fun.
*holds E for three hours to submit his review*