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