Ultima: The Maze of Schwarzschild

Ultima: The Maze of Schwarzschild ウルテイマ ～ シュワルツシルドの迷宮 (Uruteima ~ Shuwarutsushirudo no Meikyun) is an Ultima-inspired  manga created by artist Seiji Tanaka. It was published on November 15, 1991 by JICC and originally sold for ¥980.

Synopsis
Unlike the other manga published by JICC, next to nothing is known about this publication, which is quite odd since it obviously had been published.

Besides the cover, one bit that did surface is the illustration shown at the right, most likely the back cover. It shows an asteroid that is engraved with the Codex Symbol and the three people that are most likely the hero role call. However, from these bits no conclusion can be made about the story, other than it seems to be rather strange (outer space after all...).

Rumor is, that this manga is a direct coninuation of the "Exodus" manga, with the same heroes (the people on the back cover).