Here is the full list of all 17 Project Starship achievements.
This Cthulhu is bigger!
With the Devil
He is waiting for you!
Even death may die!
Do not worry, It will be worst!
He has something to say!
Get your P to 10
Extra life? Extra troubles!
Die 5 times in a row
Shields! More shields!
Kill 100 enemies in a game
Ok, that’s a reference!
God is dead!
Boss rush
It will never end
Kill God In a Boss Rush
Get to level 5 in Hardcore mode