Here is the full list of all 74 Kingdom Rush achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Capture the attention of the mysterious crow.
Defeat Moloch the Demon Overlord.
Defeat 9 legions before they replicate.
Defeat Myconid, the Rotten Fungus.
Kill 25 Shrooms without them poisoning your soldiers.
Defeat Greenmuck and its minions.
Defeat Lord Blackburn to avoid war between kingdoms.
Discover the hidden monster under water.
Kill 15 Wererats before they sicken any soldier.
Defeat Ulguk-Hai the Troll Warlord.
Do not let The Kingpin escape.
Earn 45 stars.
Defeat Sarelgaz and its minions.
Kill 10.000 enemies.
Help Fredo escape.
Find the 5 legendary lost ice-shrooms.
Find the ninja master rat.
Drop 1.000 or more bomblets with the cluster bomb.
Defeat 10 Troll Pathfinders while they're treading on ice.
Find the elusive acorn.
Summon 5 rock elementals in any one stage.
Defeat Gul'Thak and its minions.
Train 1.00 soldiers.
Change soldiers' rally point 200 times.
Send 1.000 soldiers to their deaths.
Kill 300 enemies with electricity.
Build 4 Tesla towers in any stage.
Sell 30 towers.
Sell 5 towers in a single mission.
Complete the campaign.
Defeat Vez'nan.
Hold 500 or more enemies with Wrath of the Forest.
Train a hero up to max level.
Have your soldiers regenerate a total of 50.000 life.
Have your soldiers survive the explosion of 300 demons.
Build 150 towers.
Polymorph 50 enemies into sheep.
Earn 30 stars.
Build all 8 towers specializations.
Defeat J.T.
Have a single barbarian kill 10 enemies.
Throw 500 or more axes.
Teleport 250 or more enemies.
Shoot 100 missiles.
Snipe 50 enemies.
Kill 2.500 enemies
Free the sasquatch on the Icewind Pass.
Disintegrate 50 or more enemies.
Build 100 towers.
Defeat The Juggernaut
Have at least 3 Imperial Guards survive in the Citadel.
Kill 50 enemies by poison damage.
Have your Paladins perform 100 Holy Strikes.
Have your Paladins heal a total of 7.000 life.
Earn 15 stars.
Recruit max elves at The Silveroak Outpost.
Kill 100 enemies with meteor showers.
Train a hero up to level 5.
Upgrade all basic tower types to level3.
Call 10 waves early.
Call all waves early in a single mission.
Open 5 information cards.
Use Rain of Fire 5 times in a single stage.
Catch a fish.
Kill 10 or more sheep with your hands.
Kill 500 enemies.
Build 30 towers.
Kill one enemy.
Call a wave within 3 seconds of the icon showing up.
Complete all heroic stages.
Complete all iron stages.
Have your Elves deal 10000 points of damage.
Complete the campaign in Veteran mode.
Fire the Sunray 20 times.