A One Button Game: play with multiple people behind the same screen/keyboard. Every player gets exactly one button.
Some people are a TORCH/CANDLE/LANTERN. Their light is only on while they hold their button.
The other people are ACTORS (who actually do stuff). They can move all the time, but only do their thing IN THE DARKNESS.
As such, you have to work together and constantly alternate
- See stuff
- Do stuff (remembering what you saw and where)
- See stuff
- Do stuff
- And so forth
Somewhat inspired by https://hot-diggity-dog.itch.io/substratum. Although in that game you SHOOT PROJECTILES which are the light you see, which is ALSO COOL.