Career
Mainly a forward, he can also operate as a midfielder. He is currently playing for Randers Football Club in Superligaen. Viktor came through AIK"s youth ranks from an early age.
In 2008 he was placed in AIK"s feeder club Football Club Väsby United to get senior team experience.
2009
In March 2009 he rejoined AIK but this time to play with the first team His debut was against fellow Stockholm team IF Brommapojkarna, in which he scored his first goal.
He took place in the starting eleven and it took less than two minutes until he scored. He made a total of six appearances for AIK in the league this year, and one appearance in the Swedish Cup.
Foreign the rest of 2009 he was once again loaned out to Väsby United, where he made two goals in 12 appearances.
2010
During 2010 he made his big breakthrough in AIK. Even though he was just nineteen years old, he managed to make 22 appearances, in 12 of these he was in the starting-eleven. In these appearances he managed to make four goals and one assistant On 21 July he made his first European-staged game, coming on as a substitute against Jeunesse Esch in the qualifying stage of the Union of European Football Associations Champions League.
2011
In 2011, AIK made a very good season and finished second in Allsvenskan.
The season wasn"t equally good for Lundberg, even though he managed to make 24 appearances. During a few weeks he was troubled by an injury, and only managed to score two goals during the season.
2012
During 2012, Lundberg made a much better season then the previous. In Allsvenskan he managed to make five goals and five assist, in 27 appearances.
In round two of the Swedish Cup, he made the game-winning goal against Torslanda IK, therefore qualifying AIK for the group stage of the cup.
He also had great success in the Union of European Football Associations Europa League, making a total of 11 appearances, during which he managed to score on two occasions. Against polish side Lech Poznań, and Icelandic side Fachhochschule . He also made three assist during the European campaign. 2013
In the summer of 2013, Lundberg transferred to the Danish club Randers Football Club for an undisclosed fee from Swedish side AIK Fotboll.