Eh, it's okay. It's a really solid example of non-euclidian spaces in games. It doesn't really do anything with that though. It could be argued that there are puzzles but for me at least 90% of them were very easy too solve too the point of not even really being puzzles. For the price of free it's worth it if you're interested in the exploration of these types of games, especially considering that it's very short, but I'd really recommend looking at other similar games after this one.