I am currently on the makings of my newest mod Amnesia: Lost in Place. Make sure to watch the mod for any updates on it. It is interesting to me and I hope that it would be interesting for you. I am working more on the scares and the story rather than on the puzzles, lets see how that works out. If you haven't tried Mysteries of the Beyond yet then make sure to try that out as well.
Amnesia: Lost in Place