So add a setup seting which if checked will add money to game. There should also be a place to write how much money everyone starts with. Here are some roles connected to money.

banker

• town sided
• if a person dies, that persons all money goes to banker.
• can start an auction on dead persons items, including sniper, sheriff, deputy gun, cultist, mason robes etc.

millionaire

• starts with x3 money, and 1 of every item.
• town sided
• Every night chooses someone who will be converted into a milllionaire and will get all his items and money if he dies.

shopkeeper(or something)

• starts the game with no money but with one crystal,vest,gun and 1 extra bread.
• Can change the price of items any time he wants.
• Wins if has 1/3 of all money ingame.

auctioneer(credit to Twelve)

• town sided
• can put his items into an auction.
• people have 30 seconds before highest bid wins.

Con artist(credit to Twelve)

• mafia sided
• can put any item to auction(even if doesn't exist)
• he will get the money for auction, but people won't get the item.

Tramp(credit to darkskull)

• every night, sits and begs for money
• 50% chance he receives money
• 50% chance he doesn't
• when Tramp dies, money is given to a random player
• sided with the village

Alterer(credit to leisure)

• town sided
• is able to swap two persons money. However all of his money is lost.

Alan(credit to darkskull)(i changed this role a bit)

• choses a role very night.
• if that role is in game he gets half of that persons money.
• if there is no such role he looses all of his money.
• wins if alive in the end of game

businessman(credit to subolg)

• choses someone every night.
• That person will turn into a villiger, nilla mafia or fool(depending on alligment)
• steals that persons all money.
• will loose half of his money every night.
• wins if has most of the money in the end of game.

I know that most of what I said Is ****, but I only wanted to hear about the idea of money in certian setups.