From the campaign page:
Arm yourself for battle!
Aventuria is a dangerous place. Lurking behind every corner may be treacherous monsters, exciting adventures, or an ill-humored comrade who challenges you to a duel. Gather your weapons, armor, and magic spells! Acquire unique skills and surprise your opponent with unexpected tricks!
But you must strategize as well - will you gather your strength so you can play a Shining Blade later? Or will you keep attacking with your dagger and try to disarm your opponent?
Aventuria Adventure Card Game is a fast-paced card game for 1-4 players, ages 14+, where each player takes the role of a hero from Aventuria. Choose from Arbosh the fierce dwarven smith, Layariel the fleet-footed elven scout, Carolan the cunning half-elven rogue, or Mirhiban the mysterious Tulamydian mage.
In Duel Mode, heroes fight against each other, while in the cooperative Adventure Mode, heroes join together as a party and go on exciting adventures. Whether battling against each other or standing united against a terrifying foe, players draw action cards every round which constantly improve their abilities. But beware, for each round brings new challenges, and you must always watch for surprise attacks from your enemies!
(content image from the German edition)
You can check out the campaign here.