The original Dead Space is arguably one of the scariest games to have released in recent years, and certainly provides a more traditional horror experience than its action-packed sequel. It hits the sweet spot between providing powerful weaponry and extreme vulnerability, and was our first look at the innovative tactical dismemberment concept that forces players to make split second decisions in the heat of combat. We also preferred Isaac when he didn't crack wise. Just saying.
We've occasionally seen Dead Space cheaper thanks to Steam deals, but for now, HMV's 20OFFHMV voucher code provides the cheapest way of getting one of this generation's standout titles.