Just finished 1953 and enjoyed it. First person, quite a bit of reading, well crafted puzzles, good and creepy atmosphere, decent story, not very long (not a complaint; it was just the right length). I played the download version, from Gamersgate if memory serves (DRM free). The game comes with a manual in PDF format which also indeed contains a full walkthrough should you need one. Not really a very hard game though, apart from some pixel hunting and one or two puzzles that had me scratching my head a bit more than usual.
This game deserves more attention than it has recieved so far!