A little Pico-8 game which I picked up from itch a while back, Explorers has you boating about a randomly generated archipelago, finding treasure, meeting other people who you can try to convince to trade with you or help you, and sometimes stealing their boats.
The aim is to complete your map, which you can do by visiting everywhere, but you can also fill it in more quickly by asking the people you meet about where they’re from or have been and they’ll draw some of it for you.
It isn’t particularly complicated, but it’s an incredible example of what you can do with Pico-8!