I find my brain extremely happy when a game provides ample opportunity to make connections, like in Dwarf Fortress, where I watch an event unfold, which can stir my creativity and imagination like nothing else. Writing a story out of it is extremely smooth and easy compared to other sandbox games.
I also find myself in love with immersive sims like Desu Ex and Thief, where level design and exploration take a front seat, every map is like a big playground with verticality and branching paths, where you find secrets and lore hidden around every corner in an atmospheric world.
What is immersion to you?
Immersion for me is a captivating story, Relatable or interesting characters, The world also plays a very important role to me.
Cyberpunk nails this in every department but games like Rimworld can also be very immersive in a different way that only graphics do not provide. I think its a very subjective and personal thing some games are more immersive than others and that can differ person to person.