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