The first issue had the cover date of October 1972. The series was published on a quarterly schedule and only 18 issues were produced. The final issue appeared with a cover date of December 1976 and reprinted the first issue. Later on, a new story appeared in Gold Key Spotlight #6, in July 1977. Whitman would later publish a reprint issue, #19, in April, 1982.
In fall of 2011, Dark Horse Comics started a hardcover archive reprint series. The first volume reprinted #1-9.
Dagar was a sword and sorcery series, set in a mythical past of warriors and wizards. There were a few secondary characters (Durak in #7, 12, 13; Torgus in #9, 10, 13). Don Glut also tied in his other Gold Key characters such as Tragg and Doctor Spektor. In #5, Jarn, Tragg's Neanderthal brother appeared. Tragg cameoed in issue #11. In issue #13, the story actually crossed over into and was concluded in issue #15 of The Occult Files of Dr. Spektor.