In Carnal Coup, you play this text-based game however you see fit. You are a shapeshifting alien that has infiltrated the invading force led by uptight Terrans. It's up to you to stop the invasion and save your people. There are eight featured alien races, and they all have their own kinks and interests. You can choose the gender of most of the aliens that you're up against. The solution to combating these aliens isn't a conventional one, and it involves being as sexy as you possibly be.