THE UNDERREALM FIELD GUIDE

Shroom and Gloom Pathways

Two ways toward The Gloom. Know what changes when you take another path.

Game version: Early Access / Sources checked: September 11, 2026

Early Access launched with two pathways toward The Gloom. The newly available route is The Mysterious Facility, with a separate card pool, enemies and rewards.

An illustrated cave corridor from official game media
THE EXISTING ROUTE

The original path

The launch announcement introduces The Facility as an additional route. We use “original path” descriptively; its exact in-game selection label is not verified here.

Illustration: official dungeon screenshot, not a verified route map.

NEW IN EARLY ACCESS

The Mysterious Facility

The developer confirms a new route with its own card pool, enemies and rewards. Access is connected to the quest system.

Exact unlock steps and route-specific card lists are not yet verified.

What does choosing a pathway change?

The launch announcement describes an entirely new card pool, enemies and rewards for The Facility. Do not assume that a card recommendation from one path can be reproduced on the other.

Which path should I choose?

We do not have a verified difficulty comparison. As an editorial starting point, use a route available in your game while you learn the core mechanics, then revisit your card choices when you enter a different pool.

How do I unlock The Facility?

Quests unlock access, according to the developer. Required items, quantities and completion steps are not yet verified for the current Early Access version.

How do characters fit in?

The launch has five characters with distinct starting decks and base Foresights. Exact character-to-pathway restrictions are not verified here. See Characters before relying on a character-specific plan.

Prepare your Explore Deck for The Facility

Adapted from gameplay transcripts; check current card and room rules. Transcript sources ↓

The supplied Facility run makes a useful distinction between finding a structure and being able to use it. The player reveals an obscured vending machine, then still needs a fixing effect to access its reward. A reveal is not automatically a repair.

  • Check interaction coverage. Keep track of which current cards can reveal, fix, unlock or break. Several copies of one action will not solve every obstacle.
  • Support the structures you choose. A structure’s reward matters less if the deck cannot provide its required interaction. The player later identifies a shortage of fixing tools as a bottleneck.
  • Inspect the merchant’s currency. One merchant in this run asks for Data. Do not spend an activation resource as though it were interchangeable with food.
  • Budget for the next encounter. Optional searches and repairs can become costly if they require repeated rests. Check the room warning before chasing another reward.

For the combat side of this route, read Gunk, Data & Machines. These are lessons from one supplied run; they do not establish the complete Facility card pool or unlock sequence.