As promised last week, Valve has officially kicked off the Steam Stealth Fest today on none other than Steam. From July 24th and up to July 31st at 10AM (PT), you can save big on a bunch of games that have some stealth elements included. Not only that, but there will be various demos for upcoming games with stealth elements and also "more."
I do not know what that "more" could be outside of maybe some developer streams? So probably...