Dysmantle, great little indie game I played on PC back in EA but now enjoying the final product on PS5 as it was included in PS Extra
You smash the environment and zombies to level up and find parts to build new weapons and tools. The game is a bit wonky but the satisfaction of getting that new weapon to be able to break down larger objects is addicting. Will set you back 20+ hours at least.
Open, because I have a split AC in the living room of my bungalow and the bedrooms get warm even with the doors open. Also the dog and cat would never allow a closed door, and they rule this roost.