www.youtube.com Click the above link to watch the previous episode! Valve Software Ep. 3: All Your History S1E18 (Game Development History) From Half-Life to Left 4 Dead 2, Valve has been one of the trailblazers in the video game industry. In this third episode of our retrospective, watch and see how Half-Life’s popularity led to an incredibly rocky development cycle, fraught with a lawsuit and one of the biggest hacks in gaming history. FOR MORE MACHINIMA GOTO: www.youtube.com TAGS: Left 4 …