Did you also see this WIP project featuring a fantasy setting?
http://forum.unity3d.com/viewtopic.php?t=38963



It constantly gets extended and there's a video of one of its versions:
[video:youtube]http://www.youtube.com/watch?v=svH6_fKULvw[/video]

You also can "play" it in the browser:
http://game.irilys.eu/olivier/zone01.html

I think it's very nice and it'll be interesting to see the final version which is supposed to also include stuff like animals walking around and so on. It "just" uses the free Indie version btw...