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