Almost everyone here has played before (hi Elaine! If you want to see generalized strategy tips, please see posts from past games) so I'll mostly talk about differences for this game:
1) Traps are a really, really big deal. The pool of roles is only 6 large so it's easy to trap by elimination. And there are 6 traps total in game if you add up all the factions. Those traps are only ever going to hit townies (in the dimension they're being trapped in), not mafia. So absolutely Do Not Share Role Information. Don't even tell someone "I'm not an X." Don't even tell someone "If I were an X I'd do Y," because if Y doesn't happen you're not an X. (Example: last spring it was easily deducible that I was a vigilante because people knew that if I were, I'd have vig killed dylanhen.) Don't tell someone you have a provable role. Don't tell your gay knight partner what your other role is, since they might be mafia in the other role.
2) Going with the above: make proxy chains LONG! If someone proxies to you, proxy that to someone else. (Probably about ~1/3 probability of actually posting it is good.) We don't want people to be able to kill off proxies to dig down to the investigator / GI / stalker / gravedigger.
3) Have a spreadsheet to organize information:
https://docs.google.com/spreadsheets/d/ ... edit#gid=04) Given the sheer fraction of bad guys out there, we know from werewolf that logic chains can get twisty and it can be hard to figure out what's true. Don't trust someone 100% even if you think you have (by some complicated logic chain) "proven" they can't be bad. (This was a major thing that went wrong for town in IAP 2017, and could even more easily happen here.)
5) Don't trust the following experienced players: uhhhh literally everyone in this game except Elaine (hi Elaine! I don't trust you either! You've watched way too many games to be a real newbie).
6) We discussed at kickoff that if any mafia wants to post publicly outing who all the mafia are, we'll happily help the first mafia to post such by executing all the people they named and then executing them last, so that they at least get 1 point. So, mafia, feel free to do that if you think you're down in expected value.
I'm sure I'm missing some stuff, so add your thoughts here!