At the start of the game, there are 12 players: 3 goon Mafia, 1 regular 3rd party, and 10 vanilla Town (this can be changed if the number is viewed as unbalanced.)
Every Night phase, Three PMs are sent out to randomly selected players (this includes night 0). Inside this PM, the player achieves a positive mutation. (for example: They can investigate players)
They then have this ability for the rest of the game. Players are randomly picked through (both town and scum) and 3 names (1 scum, 2 townies) are drawn every night. These names could stack, so it is definetly possible for players to gain multiple mutations quickly. Players can also gain mutations across multiple nights, BUT a player can only have 3 mutations. Once they receive a fourth mutation, they have to either discard that mutation or replace a existing mutation with it.
For example: Player X starts the game as a vanilla townie. On night 1 they receive two mutations: 1 shot vig kill and the ability to jail someone for the night. On night 2 they receive a mutation making them bulletproof once. Night 3 they receive a mutation that lets them see the mutations of any player once. They must then choose which ability to discard, in this example they discard the bulletprooof one.
(Note: If you use a one-time ability, you cannot replace it with another mutation after you have used it. It is simply taking up space.)
You gain abilities after night actions are taken. So the people killed during the night are already dead and do not have a chance at gaining an ability.
Other than these, standard rules. Hopefully you understand this, I will anser any questions.
List of mutations (you can know them, I don't care. It's pretty easy to guess most of them):
Terrible Scar{x2}- Nothing happens.
Power of the mind- Allows you to see the mutations and role of any player one time.
Intuative mind{x2}- Allows you to see the role (Mafia, town or 3rd party) of one player per night.
Protective skin- One time bulletproof.
Acid pores- One time vig kill available.
Trustworthy smile- One time lynchproof.
Steel grip- Can protect and roleblock one player every night.
Healers Aurora {x2}- Can protect one player per night.
Sleeping darts- can roleblock one player per night.
Swift feet- can track one player per night, seeing what abilities they use and if they try to kill someone.
That's all for now thanks!