Fate/Stay Night: The Game

[BioAlien]

I said it was from Kagetsu Tohya.. Not Plus-disk. It's another expansion.
http://en.wikipedia.org/wiki/Kagetsu_Tohya
(The english patch is on Beast's lair, latest version is 0.5.2)

Kagetsu came after Plus-Disk and takes some elements from it, like Akira Seo.
http://en.wikipedia.org/wiki/Tsukihime_Plus-Disc

So If you are planning to read Kagetsu Tohya, read Plus-Disk before.

Tsukibako here: (Tsukihime / Plus+Disk / Kagetsu Tohya)
http://www.torrentz.com/a0fe0293ca61...144d5a04f6a263
(They say Plus-Disk, but it's actually Plus+Disk, I got it and it has the extra stories Geccha 2 and Kinoko Meisaku Jikkenjyou)

After that you can start Melty Blood.