When asked by Ross who he should choose as a co-host, Arin recommended Danny Avidan, whom he said would be his back-up partner if Jon were to ever get sick and could not do the show. Arin invited Ross to host the show on the Game Grumps channel alongside Game Grumps.
Sometime in the first half of 2013, Arin's friend and fellow animator Ross O'Donovan decided to do a let's play show, Steam Train, inspired by Game Grumps. He would later hire other animators to make more animations for the channel as well.Įarly in 2013, Arin and Jon recorded their first video with a guest, Grant Kirkhope, in a new series Guest Grumps. In addition to hosting Game Grumps, Arin also animated a number of Game Grumps Animated videos for the channel. During the beginning of Game Grumps, Arin and Jon shared management of the channel, before hiring Barry Kramer to do most of the behind-the-scenes works. Arin and Jon co-hosted Game Grumps and Game Grumps VS together. Arin co-founded Game Grumps in July 2012 alongside Jon Jafari.