Arsenik

Total protonic reversal Complete Return to Hell on any difficulty.

High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.

Gest - Chapter XIII Finish the levels from Chapter XIII in Warrior difficulty

Egg Lord Breed 100 chickens

Stowaway In Voyage of Despair, spend 5 consecutive rounds in the Cargo Hold

West Side for Life In Blood of the Dead, reach Round 20 without leaving the West Side of the island

In Seventh Heaven Reached overall happiness of 77

Postmaster Complete any outpost by activating all of the generators in Regular or Hardcore difficulty.

I've Got This Acquire all upgrades

Tearing Away the Disguise Destroy all of the humanoid Dwarf Gekkos during story mode.

A Lover, Not a Fighter Successfully complete 10 No Kill battles during story mode.

Discriminating Buyer Use exactly one of each care package in the "Special Delivery" Special Ops mission.

Nothing More to Collect Unlock all the playable characters and bonus items.

Shooting master Get maximum Shooting upgrade level

The best soul collector Collect 50 000 000 souls

I Got This In The Darkest Shore, survive the initial beach rush without using any machine gun turrets.

Make it Count Win a ranked multiplayer match.

Melee master Get maximum Melee upgrade level

For Science! Researched all technologies at least once before the year 2005 in a single game

Zombie Genocide Master Kill 72,000 zombies

None more hard Complete the Campaign on Nightmare difficulty.

SIMulated Town Purchase a new map tile for the first time

Two's Company, Four's a Party Complete any Adventure level with 4 players.

Chimp on the Barbie In Ascension, kill a space monkey with a fire trap.

Big Game Trapper Use a hypno trap to turn a Rhino friendly in Mayday in Regular or Hardcore difficulty.

Give Them Something to Believe Complete New Game Plus

Surprise Attack! Arrive at the objective in File R-07 without being spotted.

Good Behavior Completed the game on any difficulty without killing any monsters.

Lights Out Complete the "Light 'Em Up" Special Ops mission on Veteran difficulty.

Master of all skills Get maximum Shooting, Melee and Airstrike upgrade level

Burgertown Escort Service Rescue 1 survivor in Infection.

Undiscovered Truths Find all the intel hidden in Nightfall.

Eh...what's up, doc? In cooperative mode, revive wounded players 5 times.

Acquire Waffle Weapons! Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)

Daemonologist All Charms unlocked

He knows what they did last era Found all eight audio notes in the Ancient Labyrinth

Breeding Novice Bred successfully at least 5 times.

Gotta Catch'em All Collect all secrets.

Act 1 Cleaner Complete all Act 1 maps on Nightmare difficulty.

A Prize Every Time Spend 5,000 Credits.

I kill dead people Killed 40 ghosts in the Ancient Labyrinth

Come On And ... Slam 10 zombies at once in Outbreak.

Useless Trinkets Completed the "Digging up the Past" side quest.

He Talked Too Much Defeat Emerson Miller

I Know a Shortcut In Voyage of Despair, take every fast travel path in a single game

Confidence Boost Win a Battlegrounds league Clan Match.

Team Player Equipped 2 Team Charms

Deliver This Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

Flawless victory Win a boss fight without losing your health

Friends With Benefits Had relations higher than 90 with all factions in the Modern Era