6 books in series

Infinity Saga

Infinity Saga is a 6-book series with 6 primary works first released in 1991 with contributions by Jim Starlin, Mark Gruenwald, Gerry Duggan, Jim McCann, Jim Zub, Al Ewing, and Humberto Ramos.

Infinity War
Infinity Crusade Vol. 1
Infinity Countdown
Infinity Countdown: Companion
Infinity Wars
Infinity Warps: Two-in-One