Penn State remains undefeated in conference play.
The Nittany Lions have been No. 12 for the entire season.
The lone score came from captain Tessa Janecke.
Katie DeSa was 24-for-24, shutting out Robert Morris.
Kendall Butze recorded a career-high six points against Lindenwood.
Tessa Janecke is now in second place in career points at Penn State with 119.