Had an idea about creating a connected universe of planets with a shared set of politics/rules and each author would build their own planet (limited of course in the way text adventure planets and countries might only be several locations!) with a goal/narrative that involves learning and working with/around each planet’s specific imaginary culture and local variations of customs and rules.
The authors could share their own laws and rulesets during creation and hopefully certain puzzles and quests would present themselves.
(As a lame example, one planet might declare the color yellow is forbidden, so the player has to hide their corn, gold coins, and sunflowers they have in their inventory as contraband when visiting…)