SIGIL II - The Doom Wiki at DoomWiki.org
SIGIL II is a sequel to SIGIL by John Romero and Romero Games. It was announced through a video interview with Bridgeburner56 which premiered through the Realms Deep online indie games convention on August 15, 2021.[1][2] It is a Doom episode, and was released December 10, 2023.[3]
Source: doomwiki.org