I like this. It should automatically apply to every game unless otherwise stated in that specific game thread.

One thing I would take out Blackmage, is that the length of games being set here. I feel that should be up to each mod and allow them to be flexible throughout the game.

For rule 13 I would change "send a private message to me and ask for help" to "send a private message to the mod and ask for help" I'm assuming these rules will be here and not posted at the start of every game since all new players will have to read the rules, so we don't want people PMing you if you're not the mod.

I would say a rule for Codes as something like this:

1. Prohibited Communication
i. requires, but is not limited to, a Third Party Resource and/or Prior knowledge and/or use of a De-cypher
ii. for the purpose of communicating with one or more players
iii. with the intent of hiding/concealing/obscuring/misleading
Punishments include, but are not limited to:
a. Publishing of all messages and their intended recipients
b. Publishing of roles/alignments of all parties related to the incident
c. Removal from current and future games
d. Mod-kill of all parties related to the incident