Here is the full list of all 17 Project Starship achievements.
Kill God In a Boss Rush
Get to level 5 in Hardcore mode
It will never end
Boss rush
God is dead!
Ok, that’s a reference!
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!
Extra life? Extra troubles!
Get your P to 10
Die 5 times in a row
Shields! More shields!
Kill 100 enemies in a game