Games........no idea how long you have been on WGT but this is how they have done the US and British Open for as long as I have been on the site (since 2009).
The US and British Open courses are put on the system for the qualifying for the upcoming championship and play is allowed in that manner. Once the Open is over, the course will be unlocked for normal stroke play, at shot and match play, plus probably for country club play.
I'm just glad to get a new course to play.