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