Blue Almanac (ブルーアルマナック, Burū Arumanakku?) is a futuristic role-playing video game game for the Sega Mega Drive. It was released only for Japan in June 22, 1991 and had a US release as Star Odyssey planned and advertised but it was cancelled at the time. North American publisher Super Fighter Team acquired the official rights to publish an English version of the game with alterations to the translation and the programming, based on an as-for-yet unreleased prototype of the US version, and released it exactly twenty years after the game's original release as Star Odyssey.