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