Hello @DKruohuo , glad to meet you.
I have something to say about games that worth to be demoed.
One of the most important game that really made the difference between Pimax BE and Vive & Rift was DCS.
It is so because DCS is a game that mostly relies on objects like airplanes seen at big distance, hence resolution is very important.
If for shooter games differences between Vive & Rift and Pimax BE was minimal, the importance of bigger resolution becomes important and distinctive for games like DCS, or any game that requires larger distances. Elite Dangerous is almost ok, it is to dark and space is just black with some stars and planets easy to see. What I need is to learn if you can detect the shape of a plane from a longer distance. This is very important in IL-2 Sturmovik where you don't have radars and many users complain that they accidentally shoot on friends because of fuselage not being clearly visible.
So, that's why maybe you will consider doing a detailed demo of a DCS mission, this game being free to download. An IL-2 Sturmovik demo would be incredible useful and amazing.
Ah, I forgot to mention something which is of a paramount importance: the huge FOV. This FOV will definitively mark the odds in favor of Pimax 8K players in all airfighting games available for VR.