Love the Subnautica games. I played them without mods, but have downloaded some inventory mods for the second one (I played it while it was in early access, so I've never actually finished it) that add a few slots to both your backpack and your lockers. I think I may have downloaded a few other QoL inventory mods, like using your nearby locker inventory when you craft.My kid is staying over at my sister's and my wife took a nap when we got home from celebrating Christmas at my parents', so I got to spend 4.5 hours playing Subnautica. I might have played throughout the night if my wife hadn't woken up wanting to play something herself.
I love games where I can hoard resources to upgrade my tools to hoard more resources and unlock more tools that allow me to hoard even more resources. Especially when they give you something to work towards. Subnautica does a great job at letting me hoard, upgrade and unlock stuff and I really love the little bits of story and world building.
I have already died once, from running out of oxygen, though I blacked out when I was right by the hatch of my base. I respawned inside and didn't seem to miss anything, so I guess I got lucky.
Loved the whole ending sequence. Gave me a real sense of doom.