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