Gleisern

No Damage! Finish any Stage without taking damage.

Don't burn yourself out Defeated the Keeper

Master of the reliquary Gather all the fingers of Frankenstein

Mountain legend Complete 30 MOUNTAIN STORIES in Alps

Street Fighter Complete all Dragon's Teeth Assignments

A Time of Wood and Stone Gathered the lost lore of Cadash Thaig ("Witch Hunt" downloadable content)

Tailor-made Chose a perfectly fitting armor

Celebrated Master of Ognapology (Ognadae Tetratetron) Find four different species of Ognapod.

Paint the Town Use the chain linker block to link two chains of 3 (or more) blocks! Will not unlock in puzzle mode.

New Threads Use a new Title and Icon, and fight in one online match. Right on!

SIMulated Town Purchase a new map tile for the first time

Thanatophobia WITHOUT using the Architect, complete the game dying 15 times or less

Three For The Road In the pursuit of strength, one must have a goal! In Endless Battle win 3 matches in a row.

Cat's nine lives Gain 9 Extra Lives

The third faction Rescue all the Buddies from their respective predicaments

Trinket Collector Collect all rings and pendants.
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Chapter 6 Speedrun Complete a Speedrun of Chapter 6 below the target time.

The First One is the Hardest Get your first 1,000,000+ combo

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

Boundless Courage Achieve victory while morale is low.

Bird Brained Brainbug at least one penguin from each of the 7 penguin ranks, including Putzki in a single playthrough

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

Head Trauma Use every type of melee weapon on a zombie

Decked Out Purchase or unlock all relics, equipment, and upgrades.

Skirmish - Chapter XIV Finish the levels from Chapter XIV in Squire difficulty

Full Arsenal Buy all upgrades for all characters (Green nodes).

Feel the Beat, Y'all! Complete "Feel the Beat, Y'all!" challenge

One Down! Win in a Ranked Match.

Super, Man! To battle is to win a fight with overwhelming strength! Show me you can do 100 Super Combos!

Chapter 5 Speedrun Complete a Speedrun of Chapter 5 below the target time.

Mode master Win an online game of every mode in every difficulty at least once.

Loyal Customer Purchased all upgrades in the Motor Forge

Two is Better than One Buy all coop upgrades.

Air Support Master Destroy 100 BHolders in The Missing Link’s and B.O.B.’s levels in Coop.

Can you dig it? Complete "Can you dig it?" challenge

That Party was Ace Ace every Adventure level in The Journey Home.

Like a glove… Finish trial #6 with 3 hearts left without picking up a spell.

Prince of the Screen Reach King of the Screen level 3

Nemesis Complete "Nemesis" challenge

Chapter 7 Speedrun Complete a Speedrun of Chapter 7 below the target time.

Chapter 8 Speedrun Complete a Speedrun of Chapter 8 below the target time.

Real men don't need a map Just in case you picked up a shielding map

Bloody Lust Kill Isaac with Samson

Olympic Champion Get any Medal for all Monster Challenges.

The River Complete "The River" challenge

Save some room Finish trial #20 one unit below the zapper.

Let the Dog Out Complete "Let the Dog Out" challenge

Think fast! Finish trial #8 with at least 52 seconds left on the clock.

Dirty Half-Dozen Complete the Cooperative game mode

Art Aficionado Buy every concept art.