Weird dream last night: The world had suffered a major apocalypse, and the oceans have heaved flooding 95% of the world. I was living in a underwater complex, and was doing some routine work outside of the base. Obviously in the water. At some point during the course of human history we gained the ability to slightly breath underwater. Combined with new tech we are able to spend vast amounts of time under water. Whatever the case I'm out there doing my thing, and manage to basically fall asleep. When I wake up I'm at the bottom of the ocean, and that's when panic sets in. You know about breathing underwater panic right? Yah that's what happened. ieyeye.
Totally gameable however!