Paper Apps

I had the Dungeon Notebook. It was fun. I played it until I got bored, which was quick, then gave it away.

The ability to "give away" these little games are part of the fun. I'd like to see a game like this where "giving it away" is part of the game. Something you can pass around a school or a con. Like an analog version of Chain World, which was a mini-Minecraft-on-a-USB-stick that you were supposed to pass on. (https://en.wikipedia.org/wiki/Chain_World )

Subnautica has a somewhat related concept which is that at the end of the game you have the ability to send a single time capsule to the maps of new players. They contain text, a picture (taken with the in game camera), and a handful of items.

It's a cute little feature that allows you to send something helpful (or just amusing) to the next generation of players.