Absolute Anime

I just found this series about 2 weeks ago and watched it. However I am confused on if there is a manga to this series and/or a video game to it. Can anyone clear this up for me? And is so what the names of the video game or manga is?
Thanks!

Fate/Stay Night is based on a visual novel of the same name. Just like Tsukihime. Actually, both are Type-Moon productions, and both are insanely awesome <3