The Maunstraut 2009 Project

[Holy_Diver]

Update: Actually since earlier comments I have found one game series with very similar gameplay based on health regen and food/sleep/thirst based condition degen...

http://en.wikipedia.org/wiki/Dragon_Crystal
http://en.wikipedia.org/wiki/Fatal_Labyrinth

I actually found the earlier game (Dragon Crystal) to be much more interesting/enjoyable. Though not connected by story/theme these are considered a single series.