Here is the full list of all 17 Project Starship achievements.
Kill God In a Boss Rush
Get to level 5 in Hardcore mode
God is dead!
Ok, that’s a reference!
Boss rush
It will never end
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
Shields! More shields!
Kill 100 enemies in a game
Die 5 times in a row
Extra life? Extra troubles!