Capcom and Valve announced that characters and zombies from each game will start appearing in each other's games. NBCNews.com's Todd Kenreck reports.
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Zombie worlds for 'Resident Evil' and 'Left 4 Dead' collide
Catch up with NBC News Clone on today's hot topic: Zombie Worlds Resident Evil Left 4 Dead Collide Flna1c8899779 - Technology and Innovation | NBC News Clone. Our editorial team reformatted this story for clarity and speed.
