Full list of all 38 Orcs Must Die! 3 achievements.
The base game contains 26 achievements, and there are 2 DLC packs containing 12 achievements.
Complete all acheivements.
Acquire every item in the game.
Score 5,000,000 total in Scramble.
Earn 5 skulls on every scenario of the story campagin on Rift Lord difficulty.
Earn 5 skulls on every scenario of the Drastic Steps campagin on Rift Lord difficulty.
Complete the Drastic Steps campaign on Rift Lord difficulty.
Score 5,000,000 in any endless match.
Survive 25 waves in a single endless match.
Complete the story campaign on Rift Lord difficulty.
Purchase all upgrades for a single trap.
Complete Tier 5 in Scramble.
Reroll a debuff in Scramble.
Complete Tier 2 in Scramble.
Survive 10 waves in a single endless match.
Complete the Drastic Steps campaign.
Score 500,000 in any campaign scenario.
Complete any Weekly Challenge.
Complete the main campaign.
Earn 1,000,000 coin.
Kill 10,000 minions.
Unlock all gear slots.
Beat the first war scenario.
Earn 100,000 coin.
Upgrade a piece of gear.
Purchase a new piece of gear.
Kill 100 minions.
5 Skull one "Cold as Eyes" scenario on Endless
5 Skull all "Cold as Eyes" scenarios on Rift Lord
Beat all "Cold as Eyes" scenarios
Kill 1000 Cyclopes
Kill 250 Cyclopes
Purchase all 3 pieces of "Cold as Eyes" gear
5 Skull one "Tipping the Scales" scenario on Endless
Purchase one upgrade for any "Tipping the Scales" gear
Beat all "Tipping the Scales" scenarios
Kill 250 Tuatara
Kill 1000 Tuatara
5 Skull all "Tipping the Scales" scenarios on Rift Lord