The Ogre is a large enemy with extremely high health and possesses a melee and ranged attack. It carries a large piece of meat in its right hand as a club to swing and damage heroes and/or defenses.
On Campaign, they typically spawn on the later waves or solely the final wave. They are more common on Nightmare and Massacre difficulties.
The game screen shakes with every step an Ogre takes while near the player (if screen shake is enabled). They throw a snot ball at the first hero or defense they see, then throw one at their target periodically. The projectile travels slowly and causes splash damage on impact; it does not damage Eternia Crystals.
Ogres path to a core by default and attack whatever hero or physical defense gets in their way, as with most enemies. However, they have a larger aggro radius than other enemies, meaning that they are easier to distract from attacking a core. Wall-type defenses do not have to be placed in such a way that no ground enemies except Dark Elf Warriors can physically bypass them without destroying the blockade.
At melee range, the Ogre...
The ogre has a ranged attack where it throws a ball of ooze from it's left hand towards your defenses. The attack is slow moving, but does splash damage.
The ogre seems to prefer using the ranged attack, but the attack itself has a cooldown.
In Rift Mode, Rifted Ogres are extremely dangerous to towers. Their melee attacks inflict over twelve times (12x) more damage than non-Rifted Ogres. Their first snot ball is replaced with a Rifted Kobold which has a large explosion radius. The snot balls they fire afterwards drastically slow down players hit for a few seconds. The sheer attack power of Rifted Ogres often leads to players not building walls since these Ogres can quickly destroy them.
As a player, you can draw attention to yourself when the ogre is about to throw it's ranged attack. By doing so, you can force the ogre to throw it's ranged attack away from your defenses, preventing it's splash damage against your defenses.
The ogre, like other enemies, does not target auras or traps with its attacks.
The ranged attack by the ogre may come in contact with the environment, which destroys it, preventing the attack from doing any harm from your defenses.
When killed, the ogre may drop 2 pieces of loot.
Ogre Concept Art for Dungeon Defenders: Awakened!
https://www.artstation.com/artwork/2q2Lxa