Specifically, this promotion is available through the company's RewardVille rewards program, and offers a single prize in FarmVille, CityVille, Pioneer Trail and Empires & Allies. For each donation of $5 US or more, you'll receive your choice of one of the four items. Here's a rundown of what's available:
FarmVille: Food Wagon
CityVille: Nutrition Center
Empires & Allies: Farm
Pioneer Trail: Merino Sheep
To be especially clear, you must contribute at least $5 to the cause to be eligible for a prize, and you'll only receive a single prize (of your choosing) for each donation. If you play all four of these games and want all four prizes, you'll need to make five separate donations (for a minimum of $20 in total).
This promotion is set to run from September 25 (now) and October 31, giving you plenty of time to make a few donations if you choose. Here's the link to the donation site if you'd like to help out.
Will you donate to the Pizza Hut and Zynga World Hunger Relief event? Which of the four items are you going after, or will you donate enough to earn multiple items? Sound off in the comments.