These were mostly made for a school class which is why they are largely nonsensical.
This is technically for an English class and not for the main Computer Science class but it still uses JavaScript so it probably counts.
The Psychology PhD system is pretty sophisticated; the basic gameplay and UI is really simple but the implementation was significantly more complex than most of the others.
Note: I only finished a somewhat self-complete portion of my original idea. The rest wouldn't be for (school) marks, so I don't have much of an incentive to keep working on it. I'm already pretty bored of the 2D action RPG concept, so it wouldn't feel exciting to do it "for fun".