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