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! -Play as a Warrior, Mage or Ranger, then customize your appearance, abilities, and gear. Unlock amazing new talents as you level up! -Build almost anything using dozens of materials and furnishings – including NPCs! Unlock private islands where you can build your own castle to store your treasured belongings and to show off to your friends! -Vanquish enemies in real-time tactical combat! Consider carefully a foe's unique strengths and weaknesses as you choose from a variety of weapons, spells, and special abilities! -Use the mysterious Portals to travel between dozens of randomly generated 3D sandbox worlds. Collect resources for crafting in caves, lakes, and dungeons filled with surprises. -Play with friends in 4-person cooperative multiplayer or on a 2-player split screen. Work together to build awe-inspiring architecture and explore dangerous dungeons or play separately. -Architect your own island! Create AMAZING structures quickly and easily in Creative Mode and share them with your friends on the Steam Workshop! -Vanquish the Greatbeasts – the most vicious and dangerous "boss" creatures in all the realm. Each has their own hideous hideaway. -Explore a world filled with colorful characters, aid them in their quests, and bring them to your castle! -Take the adventure to ever-changing landscapes as you complete quests and earn exclusive items during random events across the fractured world.