This script was requested by someone.
It picks a random player each round and makes the player a vampire.

Edit (1): Bug fixed.

-- Random vampire
-- author: Jordynl

function randomPlayer()
    local players = {}
    for k,v in pairs(tfm.get.room.playerList) do
        table.insert(players, k)
    end
    return players[math.random(#players)] 
end

function eventNewGame()
    tfm.exec.setVampirePlayer(randomPlayer())
end