This is the kind of game that I enjoy much more than most people would, as I am a big fan of Lovecraftian horror and of atmospheric puzzlefests.
This mid-length game has a bit of a bottleneck opening, followed by a non-linear map area. It's more of an old-school feel, with some actions that are not really fair but not too bad. Two or three of the puzzles are solved by returning to an old area.
You have a recurring nightmare, and this time you can't get out. You explore an abandoned city that is a mix of R'lyeh and of the fortress in Enchanter by Infocom. Ancient writing, mystical texts, haunting memories from a half-forgotten past, violent cultists, gibbering horrors, this hits up a lot of the best parts of Lovecraft.
The NPCs are a bit weak, as you can't talk about much.