there is a few games I've seen that labels stuff as "junk to sell". that is nice and can be avoided

I tried a game called Crystal Project that was fun until I realized I hadn't left the tutorial area after an hour due to feeling the need to complete all the parkour puzzles. It turned out some were to be solved later, but this isn't obvious without spending time determining if it was a particularly hard jump, an impossible jump, or the wrong route altogether.

Lovely game but no. It'll drive me mad. I now understand why games often present challenges sequentially and make it obvious when a challenge cannot be completed until a later time.