Set in the frozen tundra of the Viking north, the 7x7 reels are filled with Nordic symbols and the 8 locked tiles in the centre waiting to be broken to unleash Valhalla or Muspell Free Spins! Thor appears and summons Lightning. The Lightning may remove all low-paying symbols or transform random symbols into new ones of the same type or into wilds!
Thor appears and throws his Hammer. It may remove a random number of 2x2 symbols replacing them with high-paying symbols or it will nudge random rows or reels for a win!There are 9 inactive tiles in the centre of the slot. Adjacent winning clusters unlock them. Break all 8 outer tiles in one Chain Reaction to unlock Valhalla Free Spins or Muspell Free Spins. Thor removes all the tiles and Golden Shields take their place on the slot until the end of Free Spins.
Golden Shields that land will lock until the end of Free Spins. When Free Spins ends each shield reveals a random Stake Multiplier! Thor removes all Low-Paying symbols so only High-Paying symbols fall on the slot until the end of Free Spins. Only two Bonus features trigger in this mode – Lava Flow and Lava Shower. A cluster forms when symbols of the same type land vertically or horizontally adjacent to one another. All clusters of five or more identical symbols award a win.