Ok, First off, I'd like to say I hate EA. I hate Origin. However, I love free games. Therefore, EA's free downloads of Dead Space kinda null out the fact that it's on origin. I've not played Dead Space, so I'm doing it because it's free. I don't know how long it will last, but hey, if you don't have it, now's your chance.
https://www.origin.com/en-us/store/on-the-house-ANW.html