Here is the full list of all 132 Orcs Must Die! Unchained achievements.
Catch 75 minions on fire at the same time with Smolder.
Win 5 games as a party leader.
Unlock war mage difficulty.
Win 1 match with all 3 free starter heroes.
Kill 50 minions while they are in the air.
Complete the Prologue.
Upgrade a trap to tier 2.
Win a weekly challenge.
Slot 1 part into 5 different traps.
Earn 150,000 coin in 1 match.
Place 100 guardians in their home locations.
Slot 3 trap parts into 1 trap.
Destroy or help to destroy 100 unstable rifts.
Pick up 100 Unchained drops.
Place 10,000 traps.
Eat 500 Delicious Meals as Bloodspike.
Kill 250 minions ensnared by Reach of Roots with Ivy.
Deal 2000 damage to an enemy with a single CATCH! by Hogarth.
Pick up 1000 coin bags with Dobbin.
Stay in Prowl for a total of 60min as Midnight.
Pick up 250 mana orbs with Stinkeye.
Knock 1,000 minions into battleground hazards with Zoey's Book Club.
Collect 500 soul stacks in a single match with Oziel.
Deal 20,000 in damage to minions with Can't Touch This.
Deal 200,000 damage in a single match with Bionka.
Kill a minion in midair with Blackpaw's Pounce.
Score a 15x or higher combo.
Five star a master or rift lord battleground without any players going Unchained.
Be Unchained for a total of 1 hour.
Spend 200,000,000 in coin.
Kill 5,000 minions with environmental traps.
Kill 1,000 minions by knocking them into battleground hazards.
Kill 100,000 minions.
Roll 250,000 meters in battle with Tundra's Avalanche.
Kill 500 boss minions.
Kill 30 enemies within 1s of using Gabriella's Kinetic Pulse.
Earn 50 stars from weekly challenges.
Defeat 15 consecutive waves in Endless.
Defeat 25 consecutive waves in Endless.
Defeat 35 consecutive waves in Endless.
Defeat 45 consecutive waves in Endless.
Claim 30-day login reward.
Open 100 chests.
Earn 200 stars.
Deal 1,000 damage with Oziel's Wraith Surge.
Kill 1,000 frozen enemies with Tundra.
Freeze 5,000 enemies with Tundra.
Kill 100 kobolds with Midnight's Shadow Swipe.
Kill 500 stunned enemies with Midnight.
Kill 5,000 enemies with Slam It Down.
Upgrade 20 traps to tier 7.
Earn 5 stars on every map.
Earn 3 or more stars on every rift lord battleground.
Earn 3 or more stars on every war mage battleground.
Unlock rift lord difficulty.
Unlock master difficulty.
Kill 150 enemies in 1 match with Dobbin's Spare Dynamite.
Earn 50 stacks of ANGRY! at once with Hogarth.
Use Blackpaw's Pounce 1,000 times during battle.
Kill 500 enemies by knocking them into hazards with Ivy's Penetrating Arrow.
Use Bloodspike's Homicidal Frenzy 30x during battle.
Deal 50,000 damage with Smolder's Incinerate.
Deal damage to 1,000 enemies with Smolder using naphtha.
Use Gabriella's Blink 500x in battle.
Mesmerize 50 enemies with a single Devious Allure from Gabriella.
Kill 50 enemies with a single In Your Faces from Maximilian.
Stun 10,000 enemies.
Deal 50,000 damage with gear.
Deal damage with 1,000 gallons of boiling oil.
Kill 100 enemies with boulders.
Kill 100 enemies with chandeliers.
Kill 10,000 soldiers.
Kill 5,000 ogres.
Kill 1,000 Archers.
Kill 10,000 kobolds.
Kill 10,000 orcs.
Earn 3 or more stars on every master battleground.
Heal 1,000,000 damage.
Take 1,000,000 damage in 1 match.
Earn 5,000,000 coin as Dobbin.
Collect 2,000 soul stacks in 1 match with Oziel.
Destroy 50 unstable rifts with Bionka.
Kill 1,000 kobolds with Bionka.
Kill 1,000 enemies with Stinkeye's Arcane Anomaly.
Kill 1,000 wounded enemies with Blackpaw.
Kill 500 enemies by knocking them into hazards with Temper's Bull Rush.
Reach max rage with Rage of the Forge 50x.
Resurrect 10 teammates with scroll of resurrection.
Prevent the loss of 50 rift points with scroll of the empty rift.
Kill 500 enemies with Smolder's From the Ashes.
Gain 50 Bloodbath stacks as Bloodspike.
Kill 50 full-health ogres with Bloodspike's Stunning Execution.
Hit 5,000 enemies with Ivy's penetrating arrow.
Summon 100 gnolls during battle with Blackpaw.
Use Dobbin's Mineshaft Shortcut 200x in a match he wins.
Place 100 totems as Stinkeye.
Run 26.2 miles with Midnight's Dash and Slash during battle.
Change magic school in battle 250x as Zoey.
Kill 500 enemies with Zoey's pet, Feebee.
Get stunned by Zoey's Chaos Tome backfiring 15x during battle.
Deal 25,000 damage to Oziel using Oziel's Essence Siphon.
Reset 5,000 traps as Gabriella
Win 5 Sabotage matches.
Win 10 Sabotage matches.
Win 25 Sabotage matches.
Win 100 Sabotage matches.
Summon Tubifore 100x.
Summon Kobold Pups 25x.
Summon a mercenary 125x.
Cast Unstable Rift Spell 75x.
Cast The Bomb Spell 50x.
Use Unchained Scroll 200x.
Summon Swiftyhooves 150x.
Achieve level 5 to unlock Sabotage mode.
Use Polymorph Chicken 75x.
Win 1 game of Sabotage.
Win 2 games of Sabotage.
Win 4 games of Sabotage.
Win 1 Chaos Trial game
Win 5 Chaos Trial games
Win 15 Chaos Trial games
Win 25 Chaos Trial game
Hit 5000 enemies with Deadeye's Bouncing Bomb.
Obtain 1000 stacks of Infamy with Deadeye.
Use Deadeye's "Outta the Way" ability 500x in combat.
Summon 100 rift shards with Cygnus.
Kill 2500 minions with Cygnus's Chain Lightning ability.
Use Yi-Lin's Imperial Reach ability 100x in combat.
Hit 2500 enemies with Yi-Lin's Tempest Strike ability.
Kill 2,500 enemies with Brass using Cannonball.
Pickup 500 of Dobbin's coins as Brass.
Pickup 500 Scrap as Brass.