[EXPIRED] Pay What You Want (Min $1, Bonus Tiers Available) for the Humble RPG Book Bundle

Humble Bundle is back with an amazing pay-what-you-want bundle for tabletop RPG gamers. Get 12 DRM-free eBooks for a minimum of $1, pay $8 or more and get a total of 23 books, and $15+ will get you 33! Proceeds support the World Wildlife Fund and the ACLU.