I've been watching the Military History channel a lot lately- I'm almost regretting setting this in 1912.
Yeah- I get the Titanic and the forebodings of WW1, but I have so many ideas that would rock for a slightly later era.
1930s & beyond...
Dr. Zeus hypocritically experiments on animals himself- exactly what he killed Dr. Moreau over- creating a subspecies of bonobo who are intelligent enough to pilot his cavorite enhanced ornithoptors. The Baum Bombers (named after the literary creator of flying monkeys) terrorize certain cities in his name.
The Nazis come to power, and using Etherships they hid on Venus, start WW2. Native Martian separatists misguidedly ally themselves with the Japanese (who consider them inferior, of course) and other Axis powers in a new bid to free themselves from the grip of exploitative Terran empires.
Dr. Zeus begins using plans stolen from the Axis powers. His minions construct a small space station. On it, he mimics the insane brilliance of the one human he respects, the terror of the last century, Prof. Chun. The space station is equipped with a powerful (stolen) Babbage calculating engine to control a vast array of mirrors, reflecting sunlight in tight beams of death all over the Earth. He also experiments with Nazi coal-powder enhanced vortex guns, Sound Cannons, and Japanese microwave death rays...
I could go on.
If ANYONE wants to run this campaign in a later era, let me know and I'll be glad to help brainstorm!
In less frustrating news, I've found hard copies of the main villains from the 1900's HERO version of this setting, and put my hands on my Space:1889 books as well. Now, if only I could find my hard copies my original adventures and/or G.A.I.A. "newsletters."