Some good points in here already, I’ll add one visual one that bugs me but in the grand scheme probably doesn’t bother many others…

Dirt.
Or lack of.
Everyone is in such shiny glossy armour/clothing, despite being kidnapped, crash landing, slaying monsters left right and centre.

So yeah, dirt, blood, wear and tear. I’m not after hyper realism or grimdark, just a tattered version of armour.