After Jon Jafari's departure from Game Grumps in 2013, Hanson launched a second show on the Game Grumps platform, originally conceptualized by O'Donovan, called Steam Train.
This would replace a then-empty timeslot.
Ninja Sex Party vocalist Dan Avidan joined O'Donovan as co-host of the show, where both play PC games (the title references the retailer Steam).
This broadened the channel's output to three videos a day: on average, two standard Game Grumps episodes, and a single Steam Train episode.
With the introduction of the show's second season, the parameters of Steam Train were expanded, allowing for O'Donovan and any member of Game Grumps to co-host (as opposed to only Avidan).

In addition to this, O'Donovan has acted as a co-host of other shows from the Game Grumps platform, including Grumpcade, Steam Rolled, and Hunting Monsters.
O'Donovan was also a frequent guest on Table Flip.
He has also authored multiple content-related animations for Game Grumps Animated.
After Jon Jafari's departure from Game Grumps in 2013, Hanson launched a second show on the Game Grumps platform, originally conceptualized by O'Donovan, called Steam Train. This would replace a then-empty timeslot. Ninja Sex Party vocalist Dan Avidan joined O'Donovan as co-host of the show, where both play PC games (the title references the retailer Steam). This broadened the channel's output to three videos a day: on average, two standard Game Grumps episodes, and a single Steam Train episode. With the introduction of the show's second season, the parameters of Steam Train were expanded, allowing for O'Donovan and any member of Game Grumps to co-host (as opposed to only Avidan).
In addition to this, O'Donovan has acted as a co-host of other shows from the Game Grumps platform, including Grumpcade, Steam Rolled, and Hunting Monsters. O'Donovan was also a frequent guest on Table Flip. He has also authored multiple content-related animations for Game Grumps Animated.
Ross O'Donovan