Spider-Man: Maximum Clonage Alpha #1 was released first.
It served as the opening chapter (Part 1 of 6) for the "Maximum Clonage" storyline and hit shelves on June 13, 1995. Spider-Man: Maximum Clonage Omega #1 followed as the grand finale (Part 6 of 6), concluding the arc on July 4, 1995.
Maximum Clonage Reading Order
While both books share an "August 1995" cover date, the full reading order for the event is as follows:
Maximum Clonage Alpha #1
Web of Spider-Man #127
Amazing Spider-Man #404
Spider-Man #61
Spectacular Spider-Man #227
Maximum Clonage Omega #1