Sluka grew up in Locust Valley, New York and attended Kellenberg Memorial High School, where he played football, lacrosse, and basketball.

[5] Sluka was named the Crusaders' starting quarterback going into his freshman season at Holy Cross, which was postponed from the fall to the spring of 2021 due to COVID-19.

[20] UNLV defeated Houston 27–7 in their 2024 season opener, with Sluka throwing for 71 yards and two touchdowns in his Rebels debut.

[22] On September 25, 2024, Sluka announced on social media he would redshirt and not play in any of the Rebels' remaining games during the 2024 season.

[24] On January 14, 2025, James Madison University announced on their social media platforms that Sluka had signed a letter of intent to play for the Dukes in 2025.