With a little Magick thrown in
Not entirely befitting of this thread, because of the addition of magick, but it definately has Vikings in the Pacific. Its an entry from Kenneth Hite's Suppressed Transmission from SJGames' Pyramid Online Magazine. Its actually the last of four such alternate Pearl Harbor scenarios and designed for use with a combination of their GURPS material.
"We were young then, and we could slay dragons."
-- Nelda Brewer Roher, WAC (ret.), looking back on 1941
In retrospect, it was as if the gods were having their grim joke. The low-slung, deadly ships appeared out of nowhere on the bright winter's morning of December 7, 1591, dragon-heads weaving at their prows. But these were actual dragon heads, and the dragons took wing from the decks of the Nihonese armada and devastated the Vinlander entrepots at Perleshavn in Hovoe. Thus did Hideyoshi Toyotomi declare war on the Vinlanders, with a strike straight from the old sagas themselves. He wished a free hand in Kinland and the rest of the Peaceful Ocean, and only Vinland had the ships and the magics to harm him, for they had kept the ancient runes of Odin and the urge to sail the whale's road after their Norse kinsmen had turned to the White Christ and the distractions of Europe. But his dragons had missed the pride of the Vinlander fleet, the sacred ships where the mighty Valkyries slept. Hideyoshi also did not count on Vinland's allies the dwarves, who cast magic weapons by the cartload, or the Saracens who wove flying carpets in the Muslim districts of Vinland's cities. Their might, and Vinland's treasure, all the godhi freely pledged when next the Thing met. Under the great captains Halsi the Bull and Hosti Njemmisson, the Vinlanders are readying a mighty fleet to strike across the Peaceful Ocean and join up with the great warrior Arthursson in the Spice Islands. They will go a-viking right into the Inland Sea if they have to summon Surtur himself to scour the Nihonese cities clean.
This is a GURPS Vikings-Alternate Earths 2-Japan-World War II crossover, which can use any and all magic to taste. Japanese shugenja and Viking rune-magicians are probably the most common, but anything at all justifiable, from Arabian sorcerors to Aboriginal shamans to Taoist alchemists, can show up in this epic high fantasy setting. (If you want to enjoy a simultaneous war in Europe for the complete WWII feeling, you can pit Gardarika and Danemark against the suddenly-expansive Swedes and Sikellians.) Magic and late-Renaissance technology (including clockpunk wonderment from ninja war-kites to ironclad Korean turtle-ships) blend with dragons and oliphaunts for the proper free-wheeling feel. This is Ray Harryhausen's Victory at Sea and John Wayne's Egil's Saga where berserk meets bushido in a battle to the death. Skoal!
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As an aside I was interested in the reference to Surtur, tho it clearly had something to do with either firebombing or the atomic bomb. From Wikipedia under Sutr there is the poem:
At the end of the gods and the world, as it is said in Völuspá:
Surtur from the south
wielding fire
The gods' swords shine in the darkness,
like stars in the night
Mountains collapse into rubble
And fiends shall fall
Man walks the road to ruin
as the sky splits in two