One Million Room Mega-Dungeon – 004

I like multiple dimensions and alternate realities. The mega-dungeon beneath The Ruins of Murkhill has many portals. Portals come in different colors and types. The types are as follows: fixed portals which are always found in the same place, moving portals which are found in a specific area of the dungeon but vary in their location within that area, and random portals which can appear any place throughout the dungeons at any time. Every so often in addition to a wandering monster roll, there is a wandering portal roll. All of these portals show up in corridors or doorways. There are also portals that show up in certain types of rooms. If you enter any room that has more than six visible doors it is possible that some of the doors are portals to somewhere else. Rooms that rotate, spin or move in odd ways also may have portals involved.

The portals show up as a faint shimmer in the air and if players are running/fleeing something it is possible that they can pass through a portal before they realize that they are doing so, which is why I introduced them to portals that just appeared ahead of them so that they knew it could happen and is one of the risks of blindly fleeing in this dungeon. That faint shimmer in the air can be black, brown, red, orange, green, yellow, blue, purple, violet, gray, white, silver, and gold. The color tells you specially or generally where you might be transported modified by the type (fixed, moving or random. The only thing I will reveal about the portals right now is that it should be easily guessed that the black portals lead to certain death so you might lead or drive a monster(s) into it.

What the players have discovered so far is that:

Fixed portals of brown always transport you to the same location somewhere else on the level you are on. Fixed portals of yellow always transport you to the same location somewhere else on several levels deeper than the one you are on. Fixed portals of gray always transport you to the same location somewhere else many levels deeper that the level you are on.

Moving portals of blue always transport you to some other dimension, apparently an alternate version of the world you started on. Random portals of silver transport you to somewhere else on the same planet a very long way away.