Left 4 Dead was "broken," former Valve and Half-Life dev says
Left 4 Dead is one of the greatest - if not the greatest - co-op shooters ever made. From its revolutionary 'Director' AI that personally tailors the ebb and flow of each game around you, to its wonderfully vivid cast of survivors, all characterized by the trademark Valve wit and economy of writing, even today, L4D feels more modern than many of its FPS contemporaries. As Half-Life turns 25 years old, one former Valve developer, whose credits include Portal, Half-Life 2, and CSGO, discusses the creation of Left 4 Dead, explaining how, despite its wonderful, seamless playing experience, beneath the hood it was "such a broken thing."
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