Here is the full list of all 84 Legends of Kingdom Rush achievements.
Complete an adventure with a character with at least 3 wounds.
Defeat Mór-Ga-Nok with Nok as the final aspect.
Defeat the Ashervan in their secret den.
Defeat Mór-Ga-Nok with Ga as the final aspect.
Free the Argentree from Mor-Ga-Nok's possession.
Complete The Wild Moon on Normal difficulty.
Defeat Mór-Ga-Nok with Mór as the final aspect.
Finish 10 treefolk units with Burning damage.
Have the Poke Oaks hit enemies 5 times in the same combat.
Defeat the orcs setting up camp in Silveroak without receiving damage.
Find the ninja hiding in Silveroak Forest.
Save the villager from the Demon Lord.
Defeat Iriza with 5 different legends.
Participate in 25 Daily Challenges.
Defeat Krum'Thak in the same round he enters the arena.
Destroy 10 obelisks.
Save Argaleham from the trolls before round 4.
Win 10 Quick-Play fights on Normal difficulty.
Have 1 character with a stat upgraded three times during an adventure.
Save both villagers from the winter wulves.
Answer 5 riddles correctly.
Win 10 Quick-Play Arena combats with Elite enemies.
Win a Quick-Play Arena combat with the Burning Desire diversifier in 3 or fewer rounds.
Win 5 Quick-Play fights on any difficulty.
Win a Quick-Play Arena combat with the Bashed Heroes diversifier without hero casualties.
Win an Arena combat with the Encouraging Audience diversifier without consuming any food.
Defeat the Harbinger without being hit by the Glare energy.
Participate in 10 Daily Challenges.
Deal 50 total damage in a single round.
Win 5 Daily Challenges.
Win all 3 Argaleham combats.
Defeat 5 enemies in a single turn.
Gain 5000 gold during adventures.
Break frozen units' ice shield 10 times.
Win 1 Daily Challenge.
Find the most durable pig house.
Find the cursed girl on the outskirts of the forest.
Find the elusive jumping bear.
Keep at least 1 young barbarian alive until the end of combat.
Find the mutated winter wulf in the mountains.
Complete an adventure without any hero deaths.
Complete an adventure with the original party and no recruits.
Complete an adventure with Bruxa.
Defeat 1000 enemies.
Save at least 1 soldier at the orc camp.
Complete an adventure with Reg'son.
Get 4 or more success dice on a roll.
Defeat Iriza and banish the Overseer.
Complete Extradimensional Menace on Normal difficulty.
Complete an adventure with Bravebark.
Defeat Krum'Thak without any casualties.
Heal 250 health points during combats.
Win 100 combats.
Damage 25 enemies using combat props.
Land 100 epic strikes.
Beat the Dark Knights at the Dark Army Checkpoint without any casualties.
Have all your party members at max level during an adventure.
Win an encounter with 1 unit left with 1 HP left.
Feed the vampire killer in the wastelands.
Unlock 10 characters.
Complete an adventure with Oloch.
Explore 100 nodes.
Use 10 items during challenges.
Win 3 combats in a row without receiving any Health damage.
Use 10 items during a single adventure.
Win a combat against skeletons without any of them respawning.
Reach the Mountain Boss Fight.
Recover the Stormcloud Temple from the trolls.
Complete Stormcloud's Winter on Normal difficulty.
Successfully defend Argaleham.
Deal a total of 1000 damage.
Complete an adventure with a character from each class.
Complete an adventure with Asra.
Defeat 100 enemies.
Succeed in 3 dice challenges in a row on the same adventure.
Reach Krum'Thak's arena.
Defeat Krum'Thak Ragestorm.
Complete Krum'Thak's Dominion on Normal difficulty.
Complete an adventure with Gerald.
Find the empowered sheep in the forest.
Help the intergalactic hero stranded in the forest.
Explore 5 nodes in the Forest adventure.
Help Gerald escape from Linirea's citadel.
Begin your legendary quest to save Linirea.