If the Hundred Years' War had been fought with paintballs instead of rifles, it might still be happening, but it'd be so colorful that no one would mind. Experience your own vibrant battlefield with today's Groupon: for $15, you get admission, plus gun, air, and mask rental, 280 balls, and two souvenir pods, to Bing Field Paintball & Airsoft Park in Edwardsville, Illinois (a $38 value).

Bing Field hosts 35 acres of family-friendly combat spanning across seven fields of multichromatic glory. Sphere-shooting operations can be launched on any of the three wooded areas: World War II Field, Vietnam Field, and Frontier Field, the last of which features 15 single- and 2-story log cabins, a frontier fortress, and a hidden coonskin cap that confers 30 seconds of invincibility when worn. Merciless markers will enjoy the fast-paced action of the four speedball fields, where sliding from cover to cover and inscrutable tactical hand gestures are the order of the day.

Rental equipment consists of a semiautomatic Tippmann 98 Platinum Series gun, fog-resistant thermal-lens masks, optional chest and back protectors, and the cold reflexes of a mercenary painter. There is a concessions stand on-site to satisfy more natural cravings after the hunger for vengeance is sated, but players are free to bring their own victuals.