You should always invest in this kind of games but you should never expect much return on your investment. One of those I don't regret investing was Zeno Clash, I supported it very early on and it became a retailed game with a sequel or w/e it was. That said, many other independent games I've invested, specially "early access" were terrible investments.
This game is nice, good refreshing concept, but this will have as much playability (and replayability) as minesweeper for the awesome ammount of money that I've described above...which is too much for the game that it is imho. Still, always nice to support he little guy.
