To be sure, it was a couple few hours here and there, not at the scale of a job.

Blue Prince is an example of what fills are calling 'notebook games' -- instead of giving you lots of qol stuff, you just use a notebook to keep notes. The act of writing and arranging your notes is actually quite immersive. It's also fun!

Blue Prince has layers of puzzles and story... It's pretty reasonable to play to the credits, and not get into the depths of the post credits game; it's a very reasonable cutoff point for non-sickos.