I would like to see a journal/notes system. basically the idea is that as the game progresses players can write in their journal, which drops when they die or they can write notes to drop in places. The way to balance this and make it more fair to the imposters is to allow them to also write like that and they can swap out a dead player's journal for a fake one to throw ppl off. but to balance that it takes time to swap it out and people can easily see it. maybe as a bonus crewmates can also swap out journals to try to do stuff idk.
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the whole point is that you're active one part of the game and discussing the other. The time required to write some sort of journal would throw everything off. You would potentially have nine journals to read not knowing how reliable any of them are and then having to discuss them.
Maybe in another more complicated game but the mafia formulas pretty well established.