Viking Invasion 2: Tower Defense is a puzzle game developed by Bigben Interactive and released on Nintendo 3DS. After the success of the first game, follow the whacky new adventures of Olaf the Viking and his group in this cartoon-style fantasy Tower Defense. During their journey, these terrible bearded warriors with a debatable sense of humour will have to travel to places that are more offbeat than ever. Your mission: stop them from pillaging everything in their path!