Imes is the second commit in the class of 2023, joining Braeden Shrewsberry.
"Penn State is a special place and one of the most iconic brands in collegiate athletics," said Altius Vice President of Collegiate Partnerships Andrew Donovan.
Harrar will help represent both the Nittany Lions and the Big Ten at the three-on-three tournament.
Troubles on the mound continue to be a problem for Penn State baseball following recent 20-6 and 12-0 losses.
The sixth-seeded Willard Building is off to a Cinderella story of its own after defeating the top-ranked Thomas Building last week.
Hamilton is heading off to Houston, while Bates is reportedly sticking around in Buffalo following a bidding war.