My idea is a game of hunting,one that is done during the prehistoric era (around 10,000 b.c. probably). The art style will be using the ones from that era as well, which is the drawings found on the cavern, that people believed came from that era as well.
The game is pretty simple, we will be taking the role of a young hunter that wants to go hunting for his village. He will be given 3 sets of weapon, an arrow, throwing spear, and also axes.
That said, it’s a simple action game where we need to kill big animals, something like a mammoth or a sabretooth, where the player could switch around between the 3 weapons in real-time.
I think that this game would work really well if we use the art I mentioned.