For some styles of LARP games, this is the entirety of the game. For others, there is an adventure gaming element, where your character might have some specific goals to achieve, either alone or with the help of others. Midnight Hour would also like to have much more intimate games of between three to ten players. Interaction with the world that is controlled by the Storyteller is less of an element. In fact in some games, the STs have no input into the events of the game beyond interpreting the rules after the game has started, making the games very social events as well as intellectual and creative challenges.
People enjoy live action role-playing for a whole number of reasons.
Some for escapism because it's lots of fun to be someone else for a few hours or a few days at a time. Some do it for the social aspects of the game and the opportunity to meet new people and for the pure exhilaration of letting your mind run wild in a world of complete fantasy. Some players of outdoor games like The Apocalypse like the opportunity to get away from their desks and do something physical in the fresh air. Midnight Hour and other LARP groups generally consider safety very important. There is no running around in sewers, no swinging of even fake weapons, and no real demon summoning.