Refactor is a pretty great tower defense and totally worth playing, but I still had a few complaints. First, the tutorial. It's a lot. I was bored out of my mind by that much reading. The game doesn't allow you to simply play and have fun. It makes you read all the tutorial text, even then some of the stuff the character is explaining is pretty obvious, or that you could easily learn by yourself. The build button has no comeback option, so I can't cancel it after touching it. Sometimes I didn't find good builds to build in that round, but I was forced for the game lack of a cancel button in this option.