That just means it is all done up, and only needs translation to playable game mechanics. Don't know enough about the folk-lore to know what system would suit it. Could be d20 for all I know, but it doesn't pay to make assumptions.
Playing: Timoci in 100th level Pentastalt game.
Running: Ruceeglaelsktinag ICOOC (Now accepting applications via PM for anyone interested when/if I start this up again)
Equestria Begins (Post Hearth's-Warming era My Little Pony game): New Recruiting, Original Recruiting, OOC, IC
For everything else (including my extensive homebrew) see: Extended Signature My Homebrew is meant to be used, but, if you do, PLEASE tell me how it goes.