Viking Duo is a 2D puzzle platformer for two players. Take control of the spirit of the brave Vikings and raid a magnificent castle full of riches and treasures. Play with your friend and solve all exciting puzzles together. Pull the trigger levers, open doors, activate elevators, collect gold coins and smash fragile objects. Walk all the way through the castle's 20 halls, and at the end, open the treasury and earn your place in Valhalla!