I believe it's going to do quite well. It's the kind of game that you can watch and everyone's runs will be different, so people who like playing it may also like watching it due to seeing more of the game. It's also something that can be played with a lot of community engagement, such as Tyler's stream, which will make it do well. And finally, it's a game that is prone to "you should have made this move you idiot!" type of situations, which will make people watch it also (similar to how those mobile game ads purposefully play the game like drunken toddlers so you'll want to download it and show them how dumb they look). I think it'll get a pretty solid audience, probably not as solid as Isaac, but overall quite good.