Breakleon

Auld Lang Syne Destroy two enemy robots who have been distracted by a cigarette.

Apollo's Lyre Acquire the Lyre of Apollo

Invincible Warrior Kill 50 enemies in a row with inventory weapons without losing health.

Aerial Dance Defeat 5th Colossus

Hang 'em High! Kill 30 enemies while they're suspended in the air with the grappling hook.

Top Of The Food Chain You successfully killed 20 players with a pistol in a deathmatch.

Fragmerchant - Kill 5 Helghast using a single grenade Kill 5 Helghast at once using a single frag grenade

Wash my hands of this mess Bounty Filthy Hands Floyd

Teamwork Endurance Co-op Challenge: Warm up from freezing by standing next to a campfire lit by your partner

Perfect Knight - Day 2 Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddler's Revenge (as Batman)

Communication Skills Endurance Co-op Challenge: Kill 5 enemies that have been marked by your partner

Arkham City Lockdown Defeat every Villain With Batman

Pacifist Clear the "Intel Operative Rescue" Side Op without killing a single enemy

Phasmophobia Defeat the boss in the Forest Abkhazia.

Alone Time Endurance Co-op Challenge: Spend at least one day more than 60 meters apart

"Teamwork" Endurance Co-op Challenge: Collect an Artifact while your partner is down

Join The Midnight Club You won a multiplayer race without damaging your vehicle too much.

You Got The Message You delivered all 30 cars ordered through text message.

Get Away from Her! Endurance Co-op Challenge: Kill an enemy melee attacking your partner

Fruit Fighter Shoot a background UFO in Future Tense.

Platinum Congratulations!

10 Story Versus Wins Win 10 Story mode Versus games against at least one other player offline

Stunt Flyer Fly an airplane close to the ground for 30 seconds.

No One Left Behind Endurance Co-op Challenge: Revive a player 3 times in a single expedition

No More Strangers You've met all the random characters.

Treadhead - Kill 30 Helghast whilst in the tank Take 30 Helghast lives whilst using the ISA tank

Clingy 13 Parasite Zombies killed (lifetime)

Chaos Averted Kill an infected teammate with a headshot before they become a zombie in any mode.

Shield of the Chosen King Completed the trials on Normal.

Hunting Season Vanquish 100 Soldiers, 100 Scientists, 100 Engineers and 100 All-Stars

Brutal Complete Campaign Mode on Superhuman

Going Strong Reach Rank 50

Stop Squirming 17 Hunters Killed (lifetime)

Undertaker - Kill 1000 Helghast Kill 1000 Helghast soldiers

Veteran Acquire 100000 experience points

Light collector Gather all the 30 Light gems

A Trusted Ally Complete 49 faction missions.

Entombed Giant Defeat 6th Colossus

Weed Whacker Vanquish 100 Peashooters, 100 Sunflowers, 100 Chompers and 100 Cacti

Echoes of the Fast Obtain a Bronze, Silver, or Gold medal in Time Attack for the Forge of Destiny Challenge Tomb

Sheaf of Demeter Acquire the Sheaf of Demeter

Green collector Gather all the 30 Life gems

Superhuman! Perform every character's supermove

Conscientious Killer Complete the campaign on any difficulty without shooting any civilians

Skillful Raider Endurance Challenge: Open 5 Codices or Sarcophagi without getting caught in a trap

Duke or Dimwit? Defeated all waves in Duke and Dimwit Theater.

Teamplayer You killed 5 opposing team members.

Master improver Find all the secret Brotherhood arks

Genetically Superior You came first in 20 singleplayer street races.

Dark collector Gather all the 30 Shadow gems