Doing this because I don't want to pick a idea that other person already picked up (between the OGA ideas)
I picked up the game kart idea.
I am interested in making an RPG based on the idea 15, "RPG in an underground world", by bobjh.
It has been a long time I wanted to make an RPG.
If it is too hard to make, I could switch to idea 3, "Sci-Fi game", by anti10188.
But idea 15 is for now, my first choice, so I will try making something with this one.