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 Moloch the Demon Overlord.
Defeat Ulguk-Hai the Troll Warlord.
Complete all iron stages.
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.
Complete the campaign in Veteran mode.
Complete all heroic stages.
Fire the Sunray 20 times.
Defeat Sarelgaz and its minions.
Have your Elves deal 10000 points of damage.
Complete the campaign.
Discover the hidden monster under water.
Capture the attention of the mysterious crow.
Find the 5 legendary lost ice-shrooms.
Recruit max elves at The Silveroak Outpost.
Help Fredo escape.
Shoot 100 missiles.
Drop 1.000 or more bomblets with the cluster bomb.
Hold 500 or more enemies with Wrath of the Forest.
Kill 50 enemies by poison damage.
Snipe 50 enemies.
Catch a fish.
Build 4 Tesla towers in any stage.
Teleport 250 or more enemies.
Change soldiers' rally point 200 times.
Sell 30 towers.
Disintegrate 50 or more enemies.
Kill 15 Wererats before they sicken any soldier.
Find the ninja master rat.
Do not let The Kingpin escape.
Have your Paladins perform 100 Holy Strikes.
Summon 5 rock elementals in any one stage.
Defeat 9 legions before they replicate.
Defeat Gul'Thak and its minions.
Polymorph 50 enemies into sheep.
Have your Paladins heal a total of 7.000 life.
Throw 500 or more axes.
Defeat 10 Troll Pathfinders while they're treading on ice.
Find the elusive acorn.
Defeat Vez'nan.
Earn 45 stars.
Have your soldiers survive the explosion of 300 demons.
Kill 300 enemies with electricity.
Build all 8 towers specializations.
Kill 10.000 enemies.
Defeat J.T.
Have your soldiers regenerate a total of 50.000 life.
Earn 30 stars.
Have a single barbarian kill 10 enemies.
Train a hero up to max level.
Free the sasquatch on the Icewind Pass.
Sell 5 towers in a single mission.
Train 1.00 soldiers.
Send 1.000 soldiers to their deaths.
Use Rain of Fire 5 times in a single stage.
Have at least 3 Imperial Guards survive in the Citadel.
Defeat The Juggernaut
Build 150 towers.
Kill 100 enemies with meteor showers.
Kill 2.500 enemies
Build 100 towers.
Upgrade all basic tower types to level3.
Earn 15 stars.
Train a hero up to level 5.
Open 5 information cards.
Build 30 towers.
Kill 500 enemies.
Call 10 waves early.
Kill 10 or more sheep with your hands.
Call all waves early in a single mission.
Call a wave within 3 seconds of the icon showing up.
Kill one enemy.