I'm looking for games that make me feel small and insignificant
Pretty much, I'm looking for a game where I'm not the hero, I'm not the protagonist, I'm just a pawn in the big picture.
Preferably a game with a big open world too, one that feels real and isn't just a predetermined path for my player.
I also like games where you aren't clearly stronger than all your opponents like you're some sort of God so they actually feel intimidating and there is a fear of dying
Rain World. You are a little slugcat in a hostile ecosystem. You can fight but the predators will brutally kill you most of the time so evading combat is often better. The locations you visit are beautiful and it's easy to get lost, and the other creatures keep interacting even if you aren't there
Another different: NaissanceE. You explore incredible vast locations in a lonely monochromatic world. It's a mix of puzzle with platformer that will make you feel really small with structures that appear to repeat to the infinity. It's free on Steam.