For some reason, I have never heard of werewolf games, but I did a search, and I found what looks like it might be the most fun game ever (werewolf or not) - and all you need are 7 or more people, and some bits of paper.
The game is called werewolf…it is a bluffing party game, and there are variants of it called mafia or vampire. I want to play it right now! But unfortuantely I do not have a crowd of people. Basically, you gather a crowd of people, and one person, the moderator, hands out cards to all players. The cards tell the people if they will be werewolves (there are 2 werewolves), a seer (there is only 1), or villagers. Everyone sits in a circle and closes their eyes (because nighttime falls), and the werewolves and seer reveal themselves secretly to the moderator on at a time. The werewolves point at someone to “kill”, then close their eyes again. The seer opens his eyes and points at someone to find out from the moderator if he is a werewolf, then closes his eyes. Daytime comes and the moderator has everyone open their eyes.
The moderator points at the person that the werewolves have killed, and that person is out of the game. Then everyone else left in the game picks someone to “lynch” for the werewolf killings, and that person is out of the game, but before he leaves he shows his card so everyone can see if they killed an innocent villager or a werewolf (or the seer!). Night comes and the cycle repeats. This is just a brief synopses of the werewolf game.