Here is the full list of all 30 Steampunk Tower 2 achievements.
Destroy 200 infantrymen by Heavy cannon super ability
Send 10 trains at once
Hit 100 times in the weak points of enemies
Use all 3 Super Weapons in the battle
Kill 1000 enemies by turrets super ability
Fully upgrade the Battle Tower
Kill 100 enemies by critical hit
Fill all 5 storeys with turrets
Kill 10 infantrymen with 1 shot of Saw launcher
Kill 100 enemies in the fire
Capture 10 areas using autobattle
Earn 1000 Etherium in the missions for agents
Kill a total of 5,000 units
Complete a level with less than 5% Tower health remaining
Kill 100 enemies in the shock
Hear the clock toll
Kill a total of 500 units
Complete a level without taking any damage to the tower
Complete the main campaign
Complete all challenge levels
Complete a survival level without taking any damage to the tower
Start the mission with 3 bonuses
Capture each factory at least once
Build and upgrade all buildings in the town
Find the Sea Monster
Send agent to Copenhagen
Destroy 5 tanks by Machinegun super ability
Destroy 100 air units by Saw launcher super ability
Destroy 50 armored cars by Lightning super ability
Destroy 30 robots by Rocket launcher super ability