The Hallway of Abandoned (Infinite) Worlds

Background -A long time ago, with advanced technology or maybe magic, an Interdimensional Tunnel was built on the PC’s homeworld. Meanwhile, across countless other realities, the engineers’ counterparts were building parallel tunnels of their own. When activated, all of these alternate tunnels fused together, forming an infinite hallway that bridged endless realities. Realizing there were numerous new worlds to explore (or exploit), the inhabitants of most of these worlds left for greener pastures, leaving long stretches of the Hallway connected to mostly empty and isolationist locales. This adventure takes place in one such stretch of sparsely inhabited worlds, marked for doom by the prophecies of the mysterious Longers. Adventure through the Hallway to explore new worlds, reconnect dying civilizations, and discover the secret of The Doom.

The Hallway -The Hallway is a long winding tube, at times over 2 kilometers in diameter, with a seemingly infinite length. Lining the walls of the hallway are doors, constantly shifting in shape and detail, ranging from several to several hundred meters in height. The Hallway is dotted with strange machinery, and over time has become host to a variety of ecosystems and settlements.

Doors -The Hallway’s doors lead to a variety of different (but always hardly occupied) locales, including Alien Planets, Distant Pasts and Futures, Intergalactic Space Stations, Spirit Worlds, Alternate Quantum Universes, Divergent Timelines, Bizarre Realities, Parallel Planes, etc.

Longers -Longers are strange beings from octillions of kilometers down the Hallway. No two Longers look alike, but most are friendly, and share cryptic messages about the mysteries of reality, as well as proclamations of a coming catastrophe, known as The Doom.

Rumors and Mysteries -Whenever players explore a locale behind a door, travel to new parts of the Hallway, or encounter a Longer, there is a ½ chance of encountering a rumor or mystery. Randomly select from the below list:

Hallway Encounters -Select once from this list each time the party enters the Hallway:

Resources per Door -Select twice from this list when the party enters a door:

What if my PCs come from a populated world?That’s OK! The discovery of a Door to a populous locale can be the seed of a new adventure!

Door Traits -Randomly select 1 to 4 items from the table below for the traits of a locale beyond a door in the hallway.

Door Inhabitants -Randomly select 1 to 4 items from the table below to determine inhabitants of a locale beyond a door. Inhabitants may be natives or migrants.