First we discovered that the Earth is round.Then we discovered that it’s hollow.Now we must keep its secrets from falling into the wrong hands.
Explore one of the world’s greatest and most dangerous secrets: the Hollow Earth, a savage land filled with dinosaurs, lost civilizations, and ferocious savages! Players take on the roles of two-fisted adventurers,... [click here for more]
A savage land of danger and beauty,lies beneath our feet,protecting the mysteries of the Hollow Earth.
This sourcebook expands Hollow Earth Expedition with even more details about the mysterious and dangerous Hollow Earth, filled with hungry dinosaurs, ferocious savages, and lost civilizations! Protect your land from invaders, or guide explorers through dangerous... [click here for more]
A dying world plagued by ceaseless conflictsmolders in the night sky,home to the revelations of Mars. This sourcebook expands Hollow Earth Expedition to include Mars, a dying and dangerous planet filled with strange aliens, bizarre creatures, and vast, inhospitable wastelands. Fight for survival or vie for supremacy as a marauding sky pirate, powerful robot bodyguard,... [click here for more]
Secrets of the Surface World™The most important discovery in human history
Lies beneath our feet
Hidden by the secrets of the surface world
This sourcebook expands Hollow Earth Expedition to include the mysterious and perilous surface world, filled with dangerous criminals, mad scientists, and dark sorcerers! Become a daredevil pilot, private detective,... [click here for more]