Games storefront Humble has announced some changes to how paying for its bundles works.

In a blog post, the company revealed that it was going to take a minimum of between 15 and 30 per cent from the price consumers pay for a bundle on its service from the middle of July. Previously, users had the ability to say that zero money went to Humble when they were buying something, normally to be able to give more cash to the charities they were supporting.

"Why change after ten years? The PC storefront landscape has changed significantly since we first launched bundles in 2010, and we have to continue to evolve with it to stay on mission," Humble wrote.

"The update will allow us to continue to offer great prices on amazing games, books and software all while supporting important charitable initiatives with every single purchase.

"The change to sliders lets us continue to invest in more exciting content so we can keep growing the Humble community which will ultimately drive more donations for charitable causes. We’ll also continue to create more ways to give back such as with our 100% to charity bundles."

Earlier this year, Humble announced that it was going to be capping charity donations to 15 per cent from May. The company walked back on this strategy shortly after following a backlash.