A simple but effective concept~
I actually survived for a really long time (*red dotting intensifies*) but there was no timer so I can't actually answer the question "How long can you survive?" ;p
Also, I really like small details like how the player "ship" faces the direction you're going~
Pro-tip: Make sure your game can install and launch from the itch.io app – in this case it's the default donation settings blocking the install, I think?