I'm not usually one for developer diaries, but this one was timed well. I've heard just enough about Vostok Games' Survarium to have this free-to-play MMOFPS on my radar with a mild amount of interest.
The video kicks off with a few minutes of exposition, followed by a rundown of player progression and modes. While this might not be S.T.A.L.K.E.R. proper, it certainly seems like it'll appeal to fans of those games. The studio is made up of ex-GSC Game World employees, after all.
Try not to be too distracted by that ... thing moving around in the background. Can't unsee!
You Winarium Or You Diearium: Survarium [Rock, Paper, Shotgun]