Jaspos have released a Beta-Version.

Origal Message from Jaspos:
Prolly wont make an SP version so Ive made a .pkm with no plan to update. I know of a cupla bugs and I could put more effort into it but its hardly going to be used for comp so Im letting it go as is, ready for DM play for 4 peeps. Its not an ideal DM or SP map but I just wanted to make a shack in the woods to get away from it all …

http://www.planetunreal.com/jaspos/painkiller/