Kim Rapatti (Mono Junk) is a long-running Finnish electronic music producer and the operator behind DUM Records. In the early 1990s, releasing across multiple aliases was a practical way to keep output organized and to present a broader label roster. Mars 31 Heaven was one of Rapatti's period-specific side names, used to separate a more inward strand of work from the main Mono Junk line.

Mono Junk presents Mars 31 Heaven: Collected Works '93–'95 is the first time these recordings have been compiled onto a single release. The tracks were previously scattered across various compilations, with "Little Elephant" later reappearing on a Mono Junk release. Audio was sourced from the original DAT tapes and remastered by Michael Diekmann. "Osaka House Remix" and "World of Isolation" originally appeared on the B-side of DUM Records' Blue File Compilation (1993). "Violins" and "Abyss" appear on vinyl for the first time after CD-only appearances ("Violins" on Dum Trax, 1995, and "Abyss" on Unitunes and Came From Outer Space I), and the original mix of "Osaka House" is previously unreleased. Housed in full-colour sleeves designed by Ed Cheverton.