Repeated Attempts on Success Rolls

Sometimes you have only one chance to do something; other times you can try over and over until you succeed. Sometimes you will not know whether you succeeded or failed until it's too late to try again. Finally, there will be times when you are injured by failure but can afford to fail a few times. The GM can use common sense to distinguish among these, according to the situation in which the players find themselves. As a rule:

(a) If the first failure kills them (or destroys the object of the attempt), that's that.
(b) If a failure causes damage of some kind, assess the damage and let them try again after a reasonable time passes.
(c) If a failure causes no damage, let them try again after a reasonable time, at a -1 penalty for each attempt after the first.