Oh. My. God. When I found out about this I almost came all over myself. Heres the link for the official page:
http://www.silentscape.tk/
Someone has made a conversion of the original SH to PC. The graphics are improved and you can use fancy stuff like anti-aliasing. I havent tried the conversion myself, but apparently it works like a charm.
Unfortunately the torrent of the new SH has been taken off the official page, but I found it on p2p. If anyones interested, PM me and I can send it to you.
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