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Keep Firing! Defeat 100 threats.

Experience the Nightlife Reach the city streets overflowing with the undead.

Quite the Detective Solve 10 puzzles.

The Beginning Clear your first scenario.

A Little Too Easy Clear Story Mode on Easy Difficulty or higher.

Undead Destroyer Defeat 100 undead threats.

First Wave Clear a wave in Onslaught.

Take Down the Horde Complete Onslaught Mode on any difficulty.

Perfectly Normal Clear Story Mode on Normal Difficulty or higher.

Always Recycle Repair a weapon.

Destroying the Horde Defeat 200 threats.

Classic Safe Room Took refuge underground and reunited with a friend.

The Conductor Return a Conductor's Coin to the Conductor.

Superior Firepower Upgrade a weapon with weapon parts.

Surviving the Onslaught Clear Onslaught Mode.

Mere Flesh Wound Heal yourself 25 times.

Dine and Ash Became besieged by a horde of undead.

Craftsman Construct 50 barricades.

Mysterious Horrors Enter the second anomaly.

Biohazard Containment Clear Story Mode on Biohazard Difficulty or higher.

Finally... Some Decent Weapons! Clear five waves in Onslaught.

Employee Parking Reached the parking garage.

Weaponsmith Upgrade a weapon.

True Nightmare Clear Story Mode on Nightmare Difficulty or Arrange Mode.

Brutal Biohazard Clear a Campaign Scenario on Biohazard Difficulty or higher.

The Nightmare Rages Clear a Campaign Scenario on Nightmare Difficulty or higher.

Direct Feed Built a plan to get underground.

Use the Facilities Reached a not so safe, safe room.

Getting Steamy Ran into a dear friend, and a deadly situation.

Backtracking Get sent to run some errands, time for backtracking!

Contagious Memories Unlocked all trophies.

Chop Til You Drop Reached the Supermarket.

Welcome Back Return to your opening hour.

Boulder Dash Reached the Caverns.

Escape Vector Reached the final subway platform.

Cash on Delivery Delivered all parts to repair the subway train.

All Out War Defended your compatriots from the onslaught.

An Evil Resides Escape via the subway train.

Silent Hell Complete Story Mode.

The Mercenaries Unlock Operation: Rabid Wolf.

Help Me Rescue a survivor in Operation: Rabid Wolf.

The Gun Survivor Survive Operation: Rabid Wolf.

Clock Terror Complete Story Mode in 2 hours and 30 minutes or less.

Decayed Remains Enter the third anomaly.

Recruit Survive 5 scenarios on Normal Difficulty.

Breaking a Sweat Yet? Clear 5 non-tutorial Campaign scenarios on Hard Difficulty.

Wait, How Did You Survive? Clear 3 non-tutorial Campaign scenarios on Biohazard difficulty.

Inconceivable! Clear a non-tutorial campaign scenario on Nightmare difficulty.

Source of Torment Enter the fourth anomaly.

Tower of Pain Enter the Tower of Pain.