That's the challenge that Mirror's Edge senior producer Owen O'Brien gave his co-workers at EA DICE, the studio behind the very guns-and-vehicles-driven Battlefield franchise. O'Brien elaborates on how that initial pitch started to shape Mirror's Edge into what it is today. "If you think about it, what we did was take Battlefield, but [we] went to the opposite extreme," O'Brien says. "Instead of being about big open spaces, it's now about a focused city. Instead of being about men with vehicles and weapons, it's now about an unarmed female character out on her own." O'Brien then goes on to discuss how the core free-running/parkour mechanic was established first, and the rest of the game stemmed from that initial concept.
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Source: 1up