Je me permets de citer la preview de gamespot du 3 mars :

"Viking appears to be an interesting blend of Norse mythology in an action adventure setting with some RPG and strategy elements thrown into the mix. There'll be numerous characters that Skarin can talk to throughout the game, and this will result in new side quests becoming available. Skarin won't level up in the game, but he can unlock new moves and equipment at shops and by learning new techniques in battle."

En gros non, pas de système d'expérience, mais un peu à la manière d'un God Of War, tu pourras débloquer des compétences et des items en achetant dans les magasins ou en apprenant des techniques au combat.