Apocalypse

In the year 2050, a space rock fell near a scientific station. Scientists found the impacting rock near the base, extracted it, and studied it. One of the scientists broke off a small piece of the rock, which began to release a dark purple liquid. Manuel decided to take a small sample of this liquid to study it in his room. After studying it for hours, he discovered several things about this strange liquid. Among them was the fact that his cells multiplied as if they were red blood cells, except that with excessive exposure to the open air, it evaporated, causing a very unpleasant odor, something Manuel accidentally inhaled. He decided to seal the liquid in a jar and carefully store it in his refrigerator. After a couple of hours, Manuel felt a severe headache and fainted. They decided to take him to his room to wait for him to wake up. When he awoke, he noticed it was already night. When he checked his jar, it was no longer a liquid but a thick mass. When he opened the jar, the thick mass ended Manuel's life and entered him to take control of his body. He could live normally, except that he would look and some sharp, dark tentacles would grow on him during the night. José was investigating a piece of the space rock, and when he looked towards his bedroom window, he noticed a figure watching him. He decided to ignore it and continue with his study, but his bedroom security alarm began to sound, and when he opened the door, there was no one there. He sat down in the chair, confused, and when he turned to look at the rock, he saw the same figure from the window beside him, and he would end up being killed by Manuel's mutated body. Currently, in the year 2058, you and your girlfriend are in a base, refugees from the infected, watching as scientists finish making some final improvements to a titan to defend the armies fighting against the infected.

The virus has 3 stages of infection
Stage 1: First symptoms: headaches, weakness, pressure in the eyes, and fainting
Stage 2: Initial signs: larger than normal pupils, physical tremors, decreased mental capacity, and dark marks
Stage 3: Mutation: Sharp tentacles, deformation, agility, double intelligence, and the ability to transmit the infection