'Sup. I once had a game called Necromatics, in which some people from modern times got transported into a world ruled by christian fundamentalism. It was pretty crappy and unfinished, also there was major bug with the health items, but i liked it. I did discover the guy who made it YEARS later but he said he didnt have it any more. I'm pretty sure i got it off some review site where it was hosted (rather than linked to the maker's page) so that might still be around.
I also remember a game called Extrenia: The Messiah in which a spaceship in the future 'screws up' and crashes, the surviving crew member ending up in what appared to be medeval France, but with magic and dragons and that. It was only a demo so i wonder if any more ever got added to it?