Etlina’s Principle is an exciting 3D action game for horny adults in which you will enjoy both thrilling play time and a great story. On top of that, there will be sex scenes throughout the adventure. The story is about an alien invasion that turns the planet into some kind of heaven for their slimy selves. You will play as a young man who is part of the HOWL Squad, a special military team that’s tasked with getting rid of the aliens. You will have to make friends and defeat enemies in order to finish your mission. And you can fall in love along the way.