OSVR HDK 2 - Open Source Head-mounted display for OSVR is $299 @Amazon

[cageymaru]

OSVR HDK 2 - Open Source Head-mounted display for OSVR- Works with SteamVR and OSVR experiences is on a 25% off sale that makes it $299 instead of $399. This is the open source headset that Razer and numerous other companies are supporting. It has Steam support now for VR titles on Steam.
https://www.amazon.com/OSVR-HDK-Head-mounted-display-experiences/dp/B01HDUVIZ0/

OSVR website.
http://www.osvr.org/

How to tell if a Steam VR game will work with OSVR. 200 were compatible as of the writing of this article.
https://www.engadget.com/2016/11/30/steam-will-tell-you-what-games-work-with-osvr/

OSVR Reddit.
https://www.reddit.com/r/OSVR/