In Loop Garou you play people in a nineteenth century rural French town, on a night when the village is attacked by werewolves. They will almost certainly die. Due to some cosmic accident, or perhaps Providence, they are given the opportunity to live that night over and over again, retaining their memories of what happened in the previous iteration. In this way, they can try to change the course of events to a happier outcome.
What constitutes this ‘happier outcome’ is for you to decide. Naturally, surviving until dawn is an important objective. But protecting your loved ones from the werewolves is also important. And if you’re doing that, why not try to protect the rest of the town? Ah, but some of the werewolves might be people from the town - perhaps you should investigate so they can be brought to justice before the next full moon. Alternatively, you could take the battle to to enemy, and try to kill some of them armed with courage and foresight. Given enough repetitions, you could make the night of the full moon an orgy of terror for the werewolves rather than their intended victims.
There is not a readily identifiable end to this game. It can continue as long as you want it to, to fit whatever time-scale you wish or until you feel you have explored all the possibilities of the characters and town you have created.