is a Japanese
visual novel developed by
Type-Moon, which was originally released as an
adult game for
Windows. A version of
Fate/stay night rated for ages 15 and up titled
Fate/stay night Réalta Nua (
Irish for "new stars"), which features the Japanese
voice actors from the anime series, was released for the
PlayStation 2 and later for download on Windows as a trilogy covering the three main story lines.
Réalta Nua is also ported to the
PlayStation Vita. On October 28, 2005, Type-Moon released a sequel to
Fate/stay night, titled
Fate/hollow ataraxia. Its plot is set half a year after the events of
Fate/stay night.