The Nittany Lions survived Indiana's upset bid with Drew Allar's massive 57-yard fourth quarter touchdown.
Poor offensive execution and defense handed the Nittany Lions a 6-5 loss.
The Hoosiers have not won a Big Ten game yet this season.
Goals within the opening two minutes of the first and second periods propelled the Nittany Lions to a 2-1 win.
Robinson's status is uncertain after suffering an injury in the Nittany Lions' 20-12 loss at Ohio State.
Penn State's five freshmen are using the non-conference slate as a chance to gel with their teammates.