Buy a pack of gorgeously designed Werewolf: Live cards, so you can play the classic game of bluffing and deception in your own home.
I've spent years running the game all over the world, and have found all the extra roles and add-ons only dilute the core of what is a very simple game of lying to your friends until they don't know which way is up.
With that in mind, I have designed a pack of cards which should - unless you have TOO MANY friends - be all you'll ever need. It even fits in your back pocket!
15 x villager cards
4 x werewolf cards
1 x seer card
For 10 players, I recommend 2 x werewolves, 1 x seer, the rest villagers. Scale up from there. This is how the game is supposed to be played, and makes sure people can't hide behind confusing the roles.
Have fun, and good luck!