solid pawn
Imagine if we could create houses and design our own neibours to work in them. Create paths and actions the neibour followers and hide keys and puzzles. This is a key factor that most games have used to help them self survive. If you have a system where people can create and visit others creations, it will help the game to stay alive while you work on other things. Also I bet most people will be professional at creating and we will get amazing things to play. This would be a wonderful feature and I hope you suggest adding my idea.
To add onto this, it would also be cool to create our own cutscenes. You guys do you but if you need ideas. I got some good ones.
marble night
crystal girder
minor pawn