I saw a thread a month or two ago about Half Life and the Source Engine. The Source Engine was a huge part of my growing up, from Gmod to TF2 to HL2, Portal, CSS... I ran a successful DarkRP server for a few years
Anyhow, I noticed those threads didn't get a lot of love, and I really wanted more wallpapers, so I took to Google and, well, really couldn't find any.
I installed all the Half Life's and floated around, taking screenshots where they felt necessary. I was thinking of doing some Gmod or TF2 maps, but for now I just have Half Life
Res should be 1920x1080, as HD as possible without any modifications. I wanted to preserve the original style