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.
Thanks, NeoGAF.