The Day After Ragnarok
Fate Core HERO System (6th Edition) Pulp Hero (HERO System 6) Savage Worlds Deluxe Edition (SWD) Savage Worlds Explorer's Edition (SWEX)
Action / Adventure (Pulp) History (Alternative) Mythology / Folklore Fantasy Science Fiction (Post Apocalypse)
The Day after Ragnarok is a setting released initially for Savage Worlds, and has subsequently also released in a version for Hero System Sixth Edition. The concept has been described by the creator as "Conan 1948".
The world is an alternate history that follows very similar to our own until near the end of World War II. When the Nazi's try to recreate the world by initiating the Norse apocalypse Ragnarok by summoning Jörmungandr, the USA uses it's limited atomic bombs not to attack Japan but to kill the giant serpent.
