The X-O Database edition, published in 1993, was originally bagged with the X-O Manowar Retribution trade paperback. Because it was available in no other way, the print run for this item was much lower than any other of the early Valiant issues.
The X-O Database is comic-sized with 16 full-color pages including two cel transparencies showing details of the inner working of the X-O armored suit together with a complete history and stats.
Cover pencils by Clifford E. Van Meter, inks by Tom Ryder. X-O Manowar character profile, script by Clifford E. Van Meter, art by Jim Calafiore, Bob Layton, Mike Leeke, Joe Quesada, Tom Ryder, Sal Velluto, and Clifford E. Van Meter;
Description of the X-O armors sealed systems, weapons, propulsion, and armor classes accompanied with illustrations of all of them. X-O Manowar 3-pages of illustration by Jim Calafiore, Bob Layton, Mike Leeke, Joe Quesada, Tom Ryder, Sal Velluto, Clifford E. Van Meter. X-O Glossary by Clifford E. Van Meter.