why can't I access the demo

[Ztrix]

I want to try the demo to see whether to buy this game, there was indeed a demo when I searched for it ,but when I clicked it, it led me to the same link to buy.

[Ztrix]

Well, I found it. there is usually a button to play demo directly. Weirdly this one doesn't have it, but there is one download button which is not that easy to notice.