The family is the basic unit of society—yet, statistically, family members are the very people most likely to steal the last soda from the fridge. Solidify family alliances and suss out enemies with today's Groupon: for $20, you get an all-day video-game play pass to GameWorks (a $45 value). Each pass purchased can only be used by one person; buy up to four and bring the entire family or a school of bipedal fish.

GameWorks, a gigantic entertainment destination constructed with flashy Vegas panache, ensures both children and adults will have a delightful time fighting pixelated zombies. Choose from a windmill factory’s worth of more than 200 video games and interactive simulators, including crowd favorites such as House of the Dead 4, Dead Storm Pirates, and Midnight Maximum Tune 3. Race a raucous motion-car game while imagining your head is bald with Sega Rally 3, or pay a nostalgic visit to the old school with games such as Pac-Man. Although today’s Groupon does not cover the cost of food or drinks, you won’t have far to wander for sustenance, thanks to an on-site sports bar and grill.