Enonimous

Portal Knight Reach Level 30.

The Eagle has Landers In Ascension, escape on all three lunar landers.

The Learn'd Scholar When the proofs, the figures, were ranged in columns before me...

Workbenching Place a workbench on all islands of area 1, 2 and 3

Fuel for the Fire Secure the drilling ships and complete the mission

That Old Adage Apparently, your CASIE augmentation doesn't work on everyone...

Sweep! Sweep a frame by scoring a point on every ball you throw in one round of Bocce.

Performance Enhancing Mods Unlock all of the Performance Mods (Except Legendary Mods).

Cheapskate Acquire the exo suit without spending any money in Outbreak.

No Place for Jujus Beat the Fourth Boss

Apex Complete the "Vertigo" Special Ops mission on any difficulty.

Never Forget You revisited the site where Belltower discovered and captured you.

Improper Behavior Spraypaint all Zombrex posters

High Five Complete a Five-player game

Can't Touch This Defeat the Hollow King Boss without taking damage.

Key Master Collect all Keys.
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Nadeo Space Program Reach a height of 1,2km

The People's Hero Rescue all family members.
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Death From Above In Der Eisendrache, kill a zombie while being flung by a Wundersphere.

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

Finally Home Complete every Adventure level in The Journey Home.

Exterminatrix As E'lara, squash the spider god while holding Caddoc’s hand in Chapter 2

That’s a lot of Jigawatts! In Der Eisendrache, electrocute 121 zombies.

God Complex Create your own Crucible level

Friendly Talk to all family members on Ghost Island.
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Overkill Obliteration - Kill all enemy snipers with explosives

I am Error Reach the Second Bonus Stage

First Blood Finish a round of Last Stand

Kung Fu Graphics Complete Chapter 3

Breathing Room Destroy the second piece of enemy artillery

Hot To Trot Last 30 seconds with 50+ zombies on fire.

Saving Private Reiner Obliteration - Don't kill any members of the Reiner family

Centennial Acquire 100% of the Stars

Deforestation Kill 15 Seeder Turrets in one game in Mayday in Regular or Hardcore difficulty.

Never Tell me the Odds Complete Endor on UNLEASHED difficulty.

Pac-Man Begins Play original PAC-MAN.

Ruins Area Maze Clear all Ruins Area Maze Stages.
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Egg-stra XP! Complete the Egg-Stra XP challenge and then destroy a hive in the Onslaught DLC package.

Untouchable Use only one self revive care package in the "Special Delivery" Special Ops mission.

Catch! Escape the Collapsing Aqueduct without taking any damage

Red Shirt Kill the away team Zombie.

Mr. Furious Complete Chapter 4

That's the Spirit! Earn all 75 Stamps available in the Wild Spirits Career

Full Marks Infiltration - Complete all the Challenges

Fling Me to the Moon In Der Eisendrache, use every Wundersphere twice.

Special Election Rescue Russian President Volodin from the prison camp

dr0n3d Complete the "Arctic Recon" Special Ops mission in under 3:30.

Cubicide Mine 53,596 Blocks.

Whatever It Takes Complete Chapter 5

Skilled Adversary In IX have a Challenge banner with all 9 medallions