I'm working on a print-and-play card game currently called "Grandmother is an Ama". Players are grandchildren trying to collect the day's catch for their sick grandmother without getting bitten by sea snakes or suffocating.
Example cards:
Initial draft of the rules are ready, and it should scale from solitaire play to however many players want to print decks (45 cards/player or 5 letter-sheets). It's a push-your-luck memory race game, so player interaction is minimal currently. In a recent play test, the players had enough difficulty focusing on their own decks!
Sleeved cards showing salt water (海水) at different depths: