itch.io

To specify, always "Suppress Alien Instincts" for 100% ending. Creator's website to a link walkthrough says so
https://vosmug2.wordpress.com/

Specifically, you didn't hack the CAOS duo ship, so you don't have an escape method at the end.

Got the DLsite version. Pretty nice. I see you said It was finished. Ah, was hoping for Long Arms and Blindfolded Game Overs. Oh well still good. Do you have names for the monsters? I'd buy a sort of "bestiary" or "Research document files" book of your world.