"Creating high-quality content for games is rarely a solo endeavor. Along the way, item creators often make use of specialized tools and receive help, guidance, and feedback from various communities and individuals," Valve said. "We've heard from a number of item creators that are looking for a formal way of recognizing and rewarding the toolmakers and service providers that have helped them. Now they can!"

Under the new Steam Workshop terms, when submitting an item to the Workshop, creators can choose from a list of companies, organizations, or individuals to receive a portion of the revenue from a given item's sales.

"The contribution will be made from a set percentage that is redirected from Valve to the toolmakers, not taken from the item creator's royalty," Valve said.

Valve also noted that since the Steam Workshop opened in October 2011, users have created over 1,200 items for Team Fortress 2 and Dota 2, resulting in over $10 million in royalties paid to creators.