In Baktun 13 you are humanities last hope against the coming apocalypse. Ouroboros has returned and has set his sights on re-creating the universe including the human race. Ouroboros takes many randomly generated forms before revealing his true form, he is ever evolving so you will need great skill to defeat him and save humankind.

The secret societies that control the world, in order to decrease the likelihood of fertilization, have created an anti-sperm virus. However, the virus went wrong, and now it has decreased the likelihood of fertilization in 99,9%. This game is about the fight of the spermatozoids to make it to the ovum. A fight against EXTINCTION.