Humble Bundle Moves To Limit Charitable Donations To 15% Starting In May Share Image: Humble Bundle To sign up for our daily newsletter covering the latest news, features and reviews, head HERE. For a running feed of all our stories, follow us on Twitter HERE. Or you can bookmark the Kotaku Australia homepage to visit whenever you need a news fix. Humble Bundle announced today that in May it will begin removing its distinctive sliders from game bundle store pages, in effect capping the amount of the purchase price customers can donate to charity. News of this change has enraged some onlookers, who characterised it as greedy.