Varth was released in June 1992 in the Japanese arcades. It was known there as the 19th video game made for the CP-S system.
Known export releases:
"Varth - Operation Thunderstorm [B-Board 89624B-3]
"Varth - Operation Thunderstorm [B-Board 91635B-2]
Pony Canyon / Scitron released a limited-edition soundtrack album for this game (Varth : G.S.M Capcom 6 - PCCB-00110) on February 19, 1993.