Vasik was a sixth-semester student studying cybersecurity analytics and operations.
Bruce, who plays his high school ball for Harrisburg High School in Pennsylvania's capital city, initially committed to Penn State on October 19.
The Nittany Lions escape Madison with a series split and will return to Hockey Valley tied for first place in the Big Ten.
Lamar Stevens led the way with 23 points en route to Penn State's eighth straight win.
Grant Ament's seven-point afternoon and Mac O'Keefe's double hat trick helped Penn State easily dispatch St. Joseph's at Panzer Stadium.
Dylan Holloway scored the game-winning goal in a game that Penn State dominated the second half of on Friday night.