Aliens: Countdown

Aliens: Countdown was a black-and-white story from Dark Horse Comics initially published in one-page installments in issues of the promotional publication Dark Horse Insider from Sept.-Dec. 1991. Countdown probably started in Dark Horse Insider Volume 1, #14 (Sept. 1990) and continued for an unknown number of issues until Dec. 1991. The story was then collected in issue form and received a second printing in the UK as a two-part mini-comic included free with Aliens Magazine, Vol. 2, #9-10, in March-April 1993.