For Humongous Entertainment, a company co-founded by Ron Gilbert,[3] he helped create many critically acclaimed games aimed at children, such as the Pajama Sam series.

[4] He left Telltale in August 2014 and joined Amazon Alexa gaming specialists, Reactive Studios, in November 2014 as Chief Creative Officer.

[14] For Fisher-Price/Nickelodeon, Grossman authored two interactive books, SpongeBob SquarePants: Sleepy Time and Fairly OddParents: Squawkers.

It contains a selection of illustrated poems dedicated to different aspects of male life, including inability to dance, old stuff in the fridge, and unwillingness to clean anything.

[citation needed] Grossman also made contributions to The Dig, Total Annihilation, and Insecticide, and was a script editor on Voodoo Vince.