Back in high school I made a GameMaker game based off the book "The Metamorphosis" by Franz Kafka; that's the first full game I remember making. You woke up as a roach and go find your family then got an apple thrown and lodged in your back.
I also made a game for my senior project that was more or less a reskin of a GameMaker platformer example that took me a couple hours including making a case and box art etc. I initially started off attempting to make a first person Frogger type game in whatever version Unreal engine was out at the time but I never got further than blocking it out. I wish I would've continued down that path and completed something real at that age.
I tried to find copies of them around a year ago when I really picked up game dev but I think they got lost with some fried HDDs.