Site icon Dice Goblin

We Cannot Get Out: Giving The Underdark A Mines Of Moria Feel with Noise & Alerts in Dungeons & Dragons

Photo by Julia Volk on

“Quietly now. It’s a four-day journey to the other side. Let us hope that our presence may go unnoticed.”


This is a specific implementation of my Noise & Alert system, applied to travelling through the Underdark.

Part II of this post is up here: I Have No Memory Of This Place: Navigating The Underdark Through Your Senses in Dungeons & Dragons

What This System Tries To Do

Noise & Alerts

The Underdark fits the criteria of the Noise & Alert system to a tee: it’s enormous, too big to ever fully conquer and it houses potentially infinite threats. It’s a dangerous, unwelcome location.

Out in the Open

When carefully considering the next path at the middle of a crossroads, trudging through unlit tunnels or climbing through long-abandoned ruins, the party is considered Out in the Open. To not be Out in the Open, the party can take 2 hours in a suitable location (old ruins, a dead end tunnel etc) to hide their tracks. This means that roaming threats will not find the party, and that they are safe.

Instead of the resource of Time, the party can also make appropriate Skill Checks (Survival, Stealth, Nature etc.). This should be a choice between


“Noise” is the abstract measure of danger. It indicates the general attention the party has drawn so far. Keep in mind that the party is aware of the current Noise at all times; this is the big, threatening countdown clock (or countup clock) that adds tension. Whether it be Drow, wildlife or other dangers, the more noise the party makes (both literally and figuratively), the more trouble will find them.

Noise is gained through the following ways:

Noise can be reduced by spending 8 hours while not Out in the Open, for instance during a Long Rest. At the end of the 8 hour period, Noise is reduced by 1d8.


Whenever the party does anything that might make the more intelligent and dangerous predators of the Underdark more aware of their presence, roll 2d12+Noise. This is the Alert Check, when all the accumulated Noise is brought to bear on the party.

Actions that might trigger an Alert Check:

These actions might also add Noise individually.

The Alert Table

Check the result of the Alert Check on the Alert Table. This is an example of the one I use; it can look different based on the average increase of Noise and dice you roll for your Alert Check.

1-12No encounter.
13-24Easy encounter in 1d4 minutes.
25-34Medium encounter in 1d4 minutes.
35-44Hard encounter in 1d4 minutes.
45+Deadly encounter in 1d8 minutes.
An example encounter table

For big, multi-day trips, I’d use a table like this:

1-24No encounter.
25-35Easy encounter in 1d4 minutes.
36-57Medium encounter in 1d4 minutes.
58-79Hard encounter in 1d4 minutes.
80+Deadly encounter in 1d8 minutes.

This makes Deadly encounters the average after 6 days, with the party gaining 24-8-1d8 Noise per day. You could easily make this table way more granular, or play with the randomness by changing the 2d that you roll.

In Summary

Image credit: Pexels

Exit mobile version