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