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Valve fan site ValveTime.net claims to have gotten a hold of Half-Life 2: Episode 3 concept artwork illustrated in 2008. The site says the artwork is official, and that it wouldn’t post anything “unless it was 100% confirmed.”
Steam forum moderator Smash also confirmed its legitimacy: “This is official art, and I’m shocked that this day has come!”
A Facepunch forum member speculates the artwork is from Andrea Wicklund, whose work is similar to the leaked images. She has worked at Valve since 2006.
Get the batch below.
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Thanks, NeoGAF.