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