2010-11: Hampus Melen played for the lower division Karlskrona club in southern Sweden and skated for Blekinge in the TV-Pucken tournament for high school age players. In four games with the Karlskrona U20 team he scored 1 goal with 4 assists in Division 2 play. He played six Division 1 games with Karlskrona's U18 team, scoring 3 goals with 8 assists and 4 penalty minutes. In eight games in the TV-Pucken tournament he scored 3 goals with 7 assists and had 2 penalty minutes.
2011-12: Melen moved from Karlskrona to top division Tingsryds. In 26 games for the Tingsryds U18 team he scored 9 goals with 22 assists and was +7 with 16 assists. Tingsryds missed the playoffs after finishing eighth out of twelve teams in South Division play.
2012-13: Melen skated in five games for Tingsryds U20 team, spending the bulk of his second season with the club's U18 squad. He was -3 with no points and 2 penalty minutes for the U20 team. Melen had 40 points in 24 games for the U18 team, scoring 18 goals with 22 assists, and was +1 with 59 penalty minutes. Tingsryds missed the playoffs – finishing tenth in the South Division. Not among the 130 European skaters in Central Scouting's final rankings prior to the 2013 NHL Draft, Melen was selected by Detroit in the seventh round (199th overall).
Offensively gifted, Melen is both a scorer and a playmaker. He still needs to grow into his large frame (6'2) and find a way to translate his offensive aptitude to competitive leagues.
Will play for Tingsryds AIF's J20 team in Sweden's SuperElit in 2013-14.