Role Name: Poisoner.
Alignment Killing Neutral.
Game Size(s): 13 or more players.
Abilities: Pick either 1x bulletproof or Cop immunity before the game starts. Poisons a player at night. The poisoned player dies at a random (pre-selected by the mod but unknown to the players) point during the next day. Poison bypasses bodyguards, vests and any other anti fireweapons role or item.
Win Condition: Be the last person alive.
Intended Purpose: Third party SK with a twist.
Meta-Game Implications: Having the targets die during the day allows them to share any information they might have, or even get a lynch done before they die.
Possible Cons: In a small game (13 players), the setup must be built and balanced around this role, and an early death will turn the tables on the Town's favour.
Additional Notes: None.

Role Name: Lover.
Alignment: Any.
Game Size(s): Any.
Abilities: If a Lover dies, their partner die as well.
Win Condition: That of their alignment.
Intended Purpose: Taking interaction analysis to the next level.
Meta-Game Implications: A kill or lynch will always result in two deaths. Some will sacrifice themselves in order to kill their Lover if they think they're scum.
Possible Cons: The actions of a player might negatively affect their Lover.
Additional Notes: Can be used as a role or role modifier.

Role Name: Gladiator.
Alignment: Any.
Game Size(s): Any.
Abilities: Can challenge a player during the day. After a challenge is issued, the rest of the Town can only vote of of those two players.
Win Condition: That of their alignment.
Intended Purpose: When your vote is not enough.
Meta-Game Implications: People might duel when someone thinks they can win a 1v1 against somebody else or to prevent someone else from being lynched.
Possible Cons: Impulsive players.
Additional Notes: Poriomania used a variant which didn't end the day after a duel was over, but allowed a normal lynch after that.

Role Name: Alarmist.
Alignment: Town.
Game Size(s): Medium to big (Cult game).
Abilities: Target will gain protection against cult conversion for the night. If successfully protected, an anonymous note will announce the name of the target on the next day.
Win Condition: Town's win con.
Intended Purpose: A doctor for Cult setups.
Meta-Game Implications: Protected targets will be confirmed as non-Cultists for a day.
Possible Cons: Same as those of a Doctor; in small games, don't mix with more protective roles, nor with more than a single Cop, and if so, make sure the scum factions have enough to counter them.
Additional Notes: None.