Not a unique version of Mafia
There are 2 groups, the Allies, and Traitors, these groups have different objectives in order to win a game. The Allies are the bigger group while Traitors are small in numbers. Each Ally member and Traitor will be given a role and Ability
This group have Traitors among them, but they do not know who they are. They must figure out who the Traitors are, and kill them in order to win. They have to discuss who the Traitors are during the day phase and kill them during the night phase. They must be rational and try not to be irrational because doing so might destroy each other.
This group is among the Ally group and must eliminate them, but try not to raise suspicion. They know who they are, and they must try and mislead the Allies as the Allies are the larger group, so they must in order to make the Ally group destroy themselves. They will have to use effective persuasion and convincing arguments to kill Ally members and avoid getting killed by the Ally group. They can discuss who they want to kill in order to make the Ally group weaker in numbers and if they kill the right member, the Traitors could remove a potential threat
This is basically the Voting and discussion Phase, both Allies and Traitors can Lynch in this phase (explain what Lynching is in a bit) In the day phase, Ally Members can discuss who the Traitors are, while the Traitors can try to Lynch Ally members. This phase also reveals about what happened during the Night Phase such as who died and how.
The night phase is when roles use their abilities and where executions happen, not much about this phase
Every Role has an ability, these may very on what your role is. Your ability can either Reveal, Support, or Kill. A Role who has a Silenced Pistol stealthily eliminate people, Medics heal people who survived failed attacks, Detectives reveal abilities, Sabotagers disable the abilities of others. Abilities do have limits on how much they can be used, every ability can only be used once every night. Some abilities can only be used once every game, and some can only be used when a certain amount of phases have passed in order to use their ability again, Etc
Lynching is very important for both the Ally Group and the Traitors. Allies as it can be their only way to get rid of the Traitors. Traitors as they can Lynch to make the Allies make mistakes. Lynching also allows you to vote someone you believe to be a threat and have them executed. If a member of either group has the most votes, they will be eliminated during the Night Phase. If you are a Ally Member, make sure to only vote if you find someone suspcious, or if you are a Traitor, eliminate threats that could endanger your objective
______________________________I've made more mistakes than any man, woman, and child on this planet