Here is the full list of all 18 Engineered To Purpose achievements.
Change the settings for the sapience on a tower.
Add multiple attacks to a tower design.
Beat level 5 with only a single tower
Complete the first section of the campaign.
Complete the second section of the campaign.
Fire the satellite interlock.
Get a laser's ramp to level 5.
Get all of the stars in World 1.
Get all of the stars in World 2.
Kill 1000 enemies using corruption passive effects.
Kill 500 enemies while they have disruption passive effects active.
Completely unlock everything in the game.
Get resources from the capacitor ten times in a session.
Have over 1000 unspent resources banked.
Have 50 different tower designs saved.
Kill over 25 enemies with a single satellite interlock attack.
Spend an hour in the design scene.
Summon all waves before the first wave finishes spawning.