Achievements - PC

Achievements with a Jewel in the description are new to the PC version.
All Levels
From The Depths File:From the Depths.jpg Task: Completed all Area 1 levels on any difficulty setting Difficulty: Easy	To The Rooftops File:To the Rooftops.jpg Task: Completed all Area 2 levels on any difficulty setting Difficulty: Medium	A Taste of Victory File:A Taste of Victory.jpg Task: Completed all Area 3 levels on any difficulty setting Difficulty: Hard

Achievements
All Levels
Icon	Name	Task
File:From the Depths.jpg	From the Depths	Completed all Area 1 levels on any difficulty setting
File:To the Rooftops.jpg	To the Rooftops	Completed all Area 2 levels on any difficulty setting
File:A Taste of Victory.jpg	A Taste of Victory	Completed all Area 3 levels on any difficulty setting
File:Dungeon Crawler.jpg	Dungeon Crawler	Completed all levels on any difficulty setting
File:The Belly of the Beast.jpg	The Belly of the Beast	Completed all Area 1 levels on Hard
File:The Body of The Beast.jpg	The Body of The Beast	Completed all Area 2 levels on Hard
File:The Crown of the Beast.jpg	The Crown of the Beast	Completed all Area 3 levels on Hard
File:Dungeon Raider.jpg	Dungeon Raider	Completed all levels on Hard
File:From Fire with Brimstone.jpg	From Fire with Brimstone	Completed all Area 1 levels on Insane
File:Through The Crowded Keep.jpg	Through The Crowded Keep	Completed all Area 2 levels on Insane
File:To the Lofty Summit.jpg	To the Lofty Summit	Completed all Area 3 levels on Insane
File:Dungeon Defender.jpg	Dungeon Defender	Completed all levels on Insane! Congratulations Brave Dungeon Defender!
File:Team Effort.jpg	Team Effort	Completed all levels with 4 active players on >= Medium Difficulty
File:Perspective.png	A Matter of Perspective	Saw all four Hero endings
Challenges
Icon	Name	Task
File:Wheres The Blueprints.jpg	Where's The Blueprints	Completed No Towers Allowed on >= Medium Difficulty
File:Friends Forever.jpg	Friends Forever	Completed Unlikely Allies on >= Medium Difficulty
File:88 Core.jpg	88 Core	Completed Warping Core on >= Medium Difficulty
File:Ella Ella.jpg	Ella, Ella	Completed Raining Goblins on >= Medium Difficulty
File:Wizard Hunter.jpg	Wizard Hunter	Completed Wizardry on >= Medium Difficulty
File:You No Take Mushroom.jpg	You No Take Mushroom	Completed Ogre Crush on >= Medium Difficulty
File:Speed Freak.jpg	Speed Freak	Completed Zippy Terror on >= Medium Difficulty
File:In a fowl Mood.jpg	In a fowl Mood	Completed Chicken on >= Medium Difficulty
File:Core Cardio.jpg	Core Cardio	Completed Moving Core on >= Medium Difficulty
File:Core Destroyer.jpg	Core Destroyer	Completed Assault on >= Medium Difficulty
File:Gold Rush.jpg	Gold Rush	Completed Treasure Hunt on >= Medium Difficulty
File:Monster Mania.jpg	Monster Mania	Completed Death From Above on >= Medium Difficulty
File:A Challenger Approaches.jpg	A Challenger Approaches	Completed all Challenges on Insane Difficulty!
File:Weapon Master.jpg	Weapon Master	Completed No Towers Allowed on Insane Difficulty
File:Kobold Exterminator.jpg	Kobold Exterminator	Completed Zippy Terror on Insane Difficulty
File:Dancing in the Rain.jpg	Dancing in the Rain	Completed Raining Goblins on Insane Difficulty
File:Ogre Block Party.jpg	Ogre Block Party	Completed Ogre Crush on Insane Difficulty
File:Gold Blitz.jpg	Gold Blitz	Completed Treasure Hunt on Insane Difficulty
File:Monster Madness.jpg	Monster Madness	Completed Death From Above on Insane Difficulty
Pure Strategy and Survival
Icon	Name	Task
File:Defense is the Best Offense.jpg	Defense is the Best Offense	Reached Wave 10 on all levels in Pure Strategy on >= Medium Difficulty
File:Iron Man.jpg	Iron Man	Reached Survival Wave 10 on Insane Difficulty
File:Survivalist.jpg	Survivalist	Reached Survival Wave 15 on >= Medium Difficulty
File:Tough Guy.jpg	Tough Guy	Reached Survival Wave 15 on >= Hard Difficulty
File:Thick Skin.jpg	Thick Skin	Reached Survival Wave 20 on >= Medium Difficulty
Equipment
Icon	Name	Task
File:Smithy.jpg	Smithy	You upgraded your first equipment. Keep it up!
File:And This Is My Weapon.jpg	And This Is My Weapon	You upgraded an Equipment to its maximum potential!
File:To The Limit.jpg	To The Limit	Wore a completed set of maximum level Equipments
File:Divine Intention.jpg	Divine Intention	Picked up a Godly Weapon
File:O Mighty Smiter.jpg	O Mighty Smiter	Wore a full set of Godly Items
File:Obedience Training.jpg	Obedience Training	Raise a Pet to its maximum potential
File:Catch em All.jpg	Catch 'em All	Get one of each type of Familiar
Character Advancement
Icon	Name	Task
File:Good Student.jpg	Good Student	Completed the Tutorial. You deserve a cookie!
File:Pupil.jpg	Pupil	Reached Hero Level 10
File:Veteran.jpg	Veteran	Reached Hero Level 30
File:Defender of Etheria.jpg	Defender of Etheria	Reached Hero Level 70
File:Group Hug.png	Group Hug	Raised a Hero of each type to Level 70
Misc
Icon	Name	Task
File:True Nobility.jpg	True Nobility	Earned the Lord Award on >= Medium Difficulty
File:Perfectionist.jpg	Perfectionist	Earned the Flawless Victory Award on every Missions on >= Medium Difficulty
File:Daredevil.jpg	Daredevil	Earned Skin of Your Teeth Award on 4 Missions
File:Mastermind.jpg	Mastermind	Earned the Master Strategist Award on all Missions
File:Brute Force.jpg	Brute Force	Earned the Gunslinger Award on all Missions
File:Master Banker.jpg	Master Banker	Stored 15,000,000 Mana in your Mana Bank
Finished
Icon	Name	Task
File:Legendary Defender.jpg	Legendary Defender	You have earned every Dungeon Defenders Accomplishment! Trendy salutes you!

As seen in the DDDK there are Achievement spots for Friend Forever Insane, Warping Core Insane and Wizardry Insane. Something to look forward to if it's added to DunDef.