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