If by that you mean "Is this a real game?" the answer is most happily yes.
post #25131 There's a link to where to get an old version of it in the comments in that image.
On that note, if anyone finds/acquires a more recent version then nue225.rar, could you please post a link to it? If you're also on the yukkuri fanfic group, I think it would be nice if you posted the links there too.