(substitute the name of the lodge or building you are in)
One person is “it.” The others work independently to covertly escape from the building and either make it to a place, or complete a simple task (like capture a flag or something). The non-it people can’t run, and “it” cannot stand too close to the objective. The people are “tagged” out when the “it” person sees them and proclaims that they see them.
This seems like a slow game, since there’s no running or tagging or anything involved, but with the right group of kids (James bond fans maybe) this can last for well over an hour.
This game works better at night. You need to set up the space so there is a lot of ÛÏobjectsÛ around so the non-it participants can get around covertly.