There is some additional information about the gameplay.

Vikings – Wolves of Midgard will release on March 28th. As of now, it was confirmed for PlayStation 4 release, but we expect other platforms to be available in the same period, as they were previously described as “Early 2017”. A fresh trailer was published and you’ll find it embedded below.

The game is an action RPG based on self-evident mythology. It’s similar to the Diablo III gameplay, but with some unique features including upgrades, weapon crafting and some village building mechanics. There’s also a co-op mode, unfortunately only for two players.