Arc the Lad: Twilight of the Spirits (Known as Arc the Lad: Seirei no Tasogare ”アークザラッド 精霊の黄昏” in Japan, and Arc: Twilight of the Spirits in Europe) is a 2003 tactical role-playing game developed by Cattle Call and published by Sony Computer Entertainment. It is the sixth game released in the Arc the Lad series, and the first game in the series released for the PlayStation 2. The game was re-released in Japan as a premium box set. The game was also produced by certain members of Zener Works Inc, developers of Okage: Shadow King. It was followed up with a sequel in 2005, Arc the Lad: End of Darkness.
On December 4, 2015, during PlayStation Experience, Sony Computer Entertainment announced its plan to port PlayStation 2 games to the PlayStation 4. Arc the Lad: Twilight of the Spirits was released on the PlayStation Store on January 12, 2016.