The latest video game in the Dead Space franchise comes out on Tuesday, and there's a bunch of lore to catch up on if you've never played any of the game's before. Even if you have, chances are that it's gone in one ear and out the other. It's convoluted, though not nearly as convoluted as George R.R. Martin's A Storm of Swords. Thankfully, the good folks at GamesRadar have put together a primer for all things Dead Space that explains the big picture in a way we can all understand.