Since the Steam Workshop launched in October of 2011, over 1,200 items created by members of the community have been made available for sale in Team Fortress 2 and Dota 2, producing over $10 million in royalties paid to item creators.
Starting today, item creators in Team Fortress 2 and Dota 2 Workshops may choose from a selection of toolmakers, communities, and mentors and allocate a percentage of revenues from in-game item sales to the those who aided in the items' creation.
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.