During the events of Dead Space (particularly at the beginning and end), Isaac can be seen watching a troubling pre-recorded message from Nicole. The USG Ishimura's senior medical officer, Nicole, is the reason Isaac joined the repair crew in the first place. RELATED: Dead Space Would Make For a Great Board Game The Original Dead Space's Nicole Was Lacking In Personality Warning: Spoilers ahead for Dead Space and Dead Space 2. However, one of the most important characters in Dead Space, one that feels extremely underutilized, is Isaac's girlfriend: Nicole Brennan.

Even the insane Challus Mercer is unique in that his faith leads him to believe that Necromorphs are mankind's naturally evolved form. Computer technician Kendra Daniels always seems to have a plan, and her instructions are essential in Issac's mission to fix the USG Ishimura. Chief Security officer Zach Hammond commands an air of authority around him - adding a much-needed sense of calm amidst the Necromorph infestation. The humans Isaac comes into contact with though are quite memorable. It comes as no surprise, then, that Isaac doesn't come across many people while on the ship.

Since the majority of the game takes place on the Necromorph-infested USG Ishimura, most of the ship's crew are either dead or transformed by the alien infection. The original Dead Space tells its story mostly through logs and level design.

As engineer Isaac Clarke, players travel to various locales, repairing stuff and fighting Necromorphs as they try to survive.

The Dead Space horror game franchise has an iconic and compelling world.

Dead space 2 origin