Paintball draws on deep evolutionary instincts, recalling a time when humans had to hunt or be hunted and conflicts were solved by hurling brightly colored berries at each other. Engage in colorful tussles with today's Groupon: for $24, you get all-day paintball play, 100 paintballs, unlimited air, paintball gun, goggles, face mask, overalls, and belt-pack rental at Skirmish USA in Albrightsville (a $54 total value including tax). Additional paintballs are available for purchase onsite ($35 for 500 paintballs). Skirmish USA is a field-paint-only facility.

Skirmish USA has been tricking out its 700-acre adrenaline-filled paintball wonderland for 27 years. More than 50 playing fields send players scrambling through natural and man-made environments such as Tippmann Castle's maze of multistory towers and ramparts, and the futuristic Circle City's tunnels, tubes, and teleportation traps. Field judges preside over the capture-the-flag-style game, making sure all hits are legal and sorting out close calls. Like a chameleon's skin, camouflage overalls deflect predators' attentions and protect good clothing underneath, and a belt pack with space for up to 300 paintballs keeps a steady supply of pellets flowing through color-launching cannons.

With no limit to the number of Groupons you can purchase, warriors can return to snipe their way through each playing field and show dominance over their entire cribbage league. Players must be at least 10 years old, and those younger than 18 must have their required waiver signed by a parent or guardian.