Capsule Servant (カプセルさーばんと?) is a side-game included with the PlayStation Vita release of Fate/hollow ataraxia in November 27, 2014. It plays as a "competitive Tower Defense-style game" featuring Masters and Servants from various Fate series titles.
A standalone iOS and Android port was announced during Fate's 15th Anniversary Project and released in December 20, 2019.
- TYPE-MOON's Official Homepage for Capsule Servant Extra Game
- Story and materials translation
- Official website for smartphone release