Something that might be fun to do on this sublemmy is do a collaborative Sky Islands run where a save file was shared and people took turns doing runs. I suppose it could all go on one post or posts could be made for each individual run or day. People could roleplay it in describing what happened on their run or just relay the details and facts like a matter of fact survivor.

Or another option, one person could mainly play but in big moments of a run like deciding which direction to take in order to reach the portal, post a poll with options for which direction to head in.

I think a shared Sky Islands playthrough might be more fun to play than a normal shared CDDA playthrough since one particular player goofing and dying doesn't end the experience for everybody and multiple players could discuss how best to manage the resources on the island and when next to begin a run vs stay on the island.

I don't know, I haven't thought through all the details yet but I think it might be a fun thing to do on this sublemmy that both encourages people to interact and share stories but also provides an approachable way for newer players to learn from other CDDA player's playstyles and experiences.