A kingdom called Etheria in Dungeon Defenders living through difficult times when an ancient evil began to terrorize the territory over the local residents. This happened due to the split of the Crystals of Eternity. You need to protect the remaining jewels from enemies. You need to create your own main character, who belongs to one of the 4 classes. Factions include: squires, mage's apprentices, hunters and monks. It is possible to customize the appearance of the virtual protégé. The arsenal may contain the following items: crossbow, sword, staff, lightsabers, grenade launchers and other weapons. The main task is to construct buildings and defend positions during an attack.

Dungeon Defenders contains the following characters:

• Squire is a knight who allows you to strengthen barricades, turrets with deadly arrows and steel balls. Has the ability “Circular Cut”, which helps to make a circle with an attack. “Bloody Rage” allows you to increase the characteristics of a warrior. Deals combo attacks and also places blocks.
• Apprentice – builds magical fortresses along with rocket launchers. There are fireballs and a call of lightning. “Reloading” promotes rapid construction, restoration of health, and upgrade of towers. You can create a shock wave.
• Huntress – sets gas and other types of traps. May be invisible.
• Monk – uses auras, is able to restore the vitality of his fellows.
• Countess – makes dashes, increases defense, speed and damage itself.
• Adept – quickly destroys skeletons, as well as necromancers.
• Ranger – accurate shots, may not be visible to the eyes of opponents.
• Dedicated – drains ill-wishers.
• Barbarian – attacks while jumping, doing various combos. Uses 2 types of weapons in his hands at once.
• Jester – moves formations. Can make gifts.
• Summoner – attracts spiders, ogres, orcs, dark elves and warriors.