That dev has a bizarre history. Stay Still is only 1 of 2 renames that game received.
It was also known as “Sinister Within: Decay” at some point.
What can you do, But looking for this abondoned demos requires some Times just waiting, Some People have this on their harddrives for years and than one Day decide to upload them. I know this myself I had the RE77 0.10.1 Build for years on a differnt harddrive i didn´t even know i still had. So this might take a while or it can happen right now.