Chemistry and Physics wants to have both story and puzzle. What it has is an overly long introduction followed by an easy puzzle. The main character is supposed to be chased by someone, but this looks like it was added so it's less obvious it's a mediocre escape-the-room.
As a game, Degeneracy isn't much. The puzzle needed for a partial victory does't make much sense. It has a character with no apparent purpose. It requires some phrasing to manipulate its complex objects.
Its merit is in the quality of the gimmick's implementation. There isn't any point in playung the game, unless you're having trouble understanding the source.
In Akabane Nights, you play as a vampire searching a small part of Tokyo for blood to drink. Depending on hunger and time, you will be able to attack different people as they move areund the city.
Akabane Nights has a small world to explore, and not many people to talk to or target, but these are well done. At dawn, you get a list of other things to try, and once those are done, the exploration is mostly complete.
Owerall, it's a fun game.