In order to participate, users had to build a physical model out of building toys, including K’nex, LEGOs, and wooden blocks, as well as use paper, paint, and glue to make their model. They must then take a clear screenshot with clear lighting and send it to a specified email. They were able to send in as many submissions as they wanted for each category. Users were not allowed to send in drawings, 3D computer-generated models, and screenshots from Roblox games or other games. Users were also not allowed to send in photos from the internet.
There were five categories users could send their submissions to: Lands of Tomorrow, Captains of Industry, Bizarre Bestiary, Tests of Bravado, and Dogs of War. The top three winners for each category were rewarded with Robux.