This game is by far the saddest example of how great potential can be wasted by rushed, unfocused development. The first 1/3 of the game is amazing but everything later is just depressing. By the end of the game, it feels like a bad Quake ripoff. If you want to play a good HPL-based game, then play Shadow of the Comet or Prisoner of Ice. This one is plain bad. I'd been very nostalgic about CoC:DCotE (did like 50% of the game many years ago) but all the charm disappeared after a few hours of the gameplay. The 5/5 ratings here are just a sad example of how a craving for a modern Cthulhu Mythos game (or any not-that-popular-IP game) can make people delusional about the sad reality - that CoC DCotE is a bad, bad game.
It's really hard to rate that game. The claymotion is beautiful, the story is really nice (story itself, not its delivery, which is horrible), the OST doesn't leave my player at all (just listen to that title track, wow!). However, to say that the game is unpolished would be a huge blow to all the unpolished games out there - this is like an underdeveloped early beta or something. Lots of puzzles etc. are looking like placeholders for something actually being a challenge to any extent. The music is there one moment and a few seconds later stops. After a few minutes in a random moment music appears again. Why? Don't know. Want to exit reading the story on the wall (written with some generic font and some typos... really?) in one of the rooms? Click a hundred times, maybe the game will let you. It's just the beginning of a long list of issues. 5/5 for the idea, story, claymotion, music, lots of love put into the project. 1/5 for the execution. 3/5 overall. And screw Unity. Really. This thing is killing video games.