How is a screen game different from a giveaway or a sweepstakes?

A sweepstakes captures identity (name, email) in exchange for a chance to win. A game captures identity AND behavior — what they chose, how they played, how long they stayed, whether they came back. That behavior is a lead-quality signal you can score, segment, and route. Sweepstakes leads all look the same to your CRM. Game leads don't.