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