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