Hi Maidelen,
if you find sth interesting maybe have a go at one of my games/toys. They are all 2D and run on potato PCs.
My most ambitious game so far was Raum Drive. It's probably over 2h depending on how good you are, but there is no story, so it doesnt matter if you dont finish it.
Optical Ball is a quirky Breakout-like game with very unique level ideas. It was my first game so it's not that polished but I still like to play it to this day.