itch.io

on the second floor the purple emerald is on one of the hanging speakers above the stage. You can get it down by shooting it with the shotgun behind the counter, or by floating up with the hoverboard thing near the couch by putting it under you

If you are on stand alone Quest, you can get Mobile VR Station, download a CX File Explorer APK from the built in browser, install CX through Mobile VR Station, then install Realm 34 through CX. You might be able to install Realm 34 through Mobile VR Station IDK, I just already had CX so I did it through there.