Rage meters and siren fights
Released on 23 November 2016, Vikings Go Berzerk is the sequel to Vikings Go Wild and one of Yggdrasil's signature titles. It plays on a 5-reel, 4-row grid with 25 paylines and a published RTP of 96.1% (Yggdrasil rates the volatility medium-high).
Every base-game win involving a Viking fills that character's personal rage meter; a full meter sends the game into free spins with that Viking in berzerk mode.
Free spins, treasure chests and Ragnarök
Three scatters award free spins in which Vikings fight sirens — a victorious Viking turns into a sticky wild for the rest of the round, and berzerk Vikings win every fight. A treasure chest bonus and the rare golden Ragnarök free spins, where all four Vikings go berzerk at once, round out the features.
Yggdrasil's game sheet lists a maximum win of €93,910, with stakes running from €0.25 to €125 per spin.