Hollow earth expedition rpg pdf download free
The characters form a party and they interact with the setting's inhabitants and each other. Together they solve dilemmas, engage in battles, and gather treasure and knowledge. In the process, the characters earn experience points (XP) in… The genre is based on and has in turn influenced the Hollow Earth theory. The earliest works in the genre were Enlightenment-era philosophical or allegorical works, in which the underground setting was often largely incidental.