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