Underwater Football. https://www.underwaterfootball.com/main.html

Originally started (late 60s) to get SCUBA students more time snorkelling and and getting comfortable with having a mask flood and learning how to clear it.

Subnautica (Do not use any hint/spoiler sites, just enjoy the evolving story) Last stop Deliver us the Moon/Deliver us Mars and to a lesser extent Quantum Break (play in story mode)