Complex sentence: Richie realises he has no friends and invites the pair to stay, following which he insists the group play "Sardines"-a game in which one person hides and the rest have to find him, and when they find him they hide with him.
Split into simpler sentences: Richie realises he has no friends and invites the pair to stay. Richie insits the group play "Sardines"-a game in which one person hides and the rest have to find him, and when they find him they hide with him.