All three are card games, but belong to different mechanical families:
| Game | Family / Mechanic | Key Traits |
|---|---|---|
| Bridge | Trick-Taking (Partnership) | 4 players, 2 teams, bidding (auction), complex strategy, duplicate format for tournaments |
| Happy Families | Matching / Set Collection | 2–6 players, collect 4-of-a-kind "families" by asking opponents, simple, kids/family |
| Snap | Matching / Reflex | 2+ players, flip cards, shout "Snap!" on matching rank, fast-paced, reaction-based |
All use a standard 52-card deck (Happy Families often uses a custom 44-card deck with family illustrations).