Portal Knights PC Steam Download Key. Requires the Steam Application freely downloadable. Item dispatched fast within a few hours at most times. Selling more games. Game Description: The world of Elysia needs YOU! Join this cooperative, 3D sandbox action RPG to level up your character, craft epic weapons, conquer enemies in real-time, and build almost anything! Craft your adventure. Forge your hero. Become the ultimate Portal Knight! Prove yourself a Portal Knight by levelling up your character, crafting epic weapons, and vanquishing foes in real-time in this cooperative, 3D sandbox action RPG. Explore dozens of randomly-generated islands! Build almost anything! In a world torn apart by the Fracture and terrorized by the Hollow King, you and your friends are its only hope! Craft your adventure. Forge your hero. Become the ultimate Portal Knight!