Undercroft Deckbuilder Roguelike Paths Guide: Route Options, Costs and Node Types

Quick answer

Going down a floor in Undercroft: Deckbuilder Roguelike shows you multiple route options at once, and each option labels its content or cost before you pick. You choose exactly one option to proceed. Options observed in play include a route costing four max HP, a route offering gold, a cutscene event, an Elite encounter up front on a path, and a merchant.

How picking a route down a floor works

Descending a floor is a decision the game puts in your hands. The descent presents several route options together, and each one declares what it contains or what it costs before you commit to anything. You pick one option, and the run continues down that path.

One descent during a knight run, for example, offered three labeled choices: one reading 'Lose four max HP', one offering gold, and an event node that came with cutscenes. The label is the deal, shown before you take it.

Those labels are examples from a single descent, not a full menu of everything the game can put on a route. The pool of node types is larger than any one screen shows. What stays consistent is the format: content or cost displayed up front, one selection made, and down you go.

Node types with observed effects

These are the route options and node types seen in play, what each one shows before you pick, and what actually happened:

Data table

Option or node

Cost route

Shown before picking

The price of taking it, e.g. Lose four max HP

Observed effect

Offered on a descent; declined in the example run

Option or node

Gold route

Shown before picking

A gold reward

Observed effect

Offered on the same descent

Option or node

Event node

Shown before picking

Cutscenes, then a choice list where each choice states its cost, e.g. remove a card for six HP or transform a card

Observed effect

Transforming replaced the card Slash with Kick the fallen; the remove-a-card outcome was not observed

Option or node

Elite

Shown before picking

An Elite encounter positioned up front on the route

Observed effect

Fought before a regular fight in one run; whether Elites are fixed to specific routes or placed randomly is not established

Option or node

Merchant

Shown before picking

A shop stop on the route

Observed effect

Stock in the example included the relic grave pipe, other card offerings and might

Data table

Option or node	Shown before picking	Observed effect
Cost route	The price of taking it, e.g. Lose four max HP	Offered on a descent; declined in the example run
Gold route	A gold reward	Offered on the same descent
Event node	Cutscenes, then a choice list where each choice states its cost, e.g. remove a card for six HP or transform a card	Transforming replaced the card Slash with Kick the fallen; the remove-a-card outcome was not observed
Elite	An Elite encounter positioned up front on the route	Fought before a regular fight in one run; whether Elites are fixed to specific routes or placed randomly is not established
Merchant	A shop stop on the route	Stock in the example included the relic grave pipe, other card offerings and might

Events add a second choice on top of the route pick

An event node layers a second decision onto the route pick. The cutscenes play first, then the event presents its choices, and every choice carries its own stated cost. In the observed event, removing a card was priced at six HP, while transforming a card sat alongside it. The run chose the transform, fed it Slash, and received Kick the fallen in exchange.

That transform is the only event outcome actually shown, so read it as a demonstration of the format rather than a preview of every event: the remove-a-card branch was left unexplored, and other events can present different choices. What carries over is the pattern — event choices, like route options, tell you the price before you pay it.

Deck edits like transforming or removing a card are exactly the kind of moves the deckbuilding guide puts in context, and both Slash and Kick the fallen appear in the cards list.

Elites can front a route

An Elite encounter can sit at the front of a descent. In one run, the Elite was positioned up front before the regular fight, so the path opened with the Elite first. One placement question remains open: nothing observed establishes whether Elites are pinned to specific routes or dropped in at random. Practically, that means you can meet an Elite as the opening act of a path.

A path that fronts an Elite serves that fight before anything else on it, so it is worth having your combat plan in order — the combat guide covers the fighting itself.

Merchants are a route stop

A merchant can appear on a route as a stop where you buy items. In the example, the stock included the relic 'grave pipe' along with other card offerings and might — the kind of pickup that changes what your deck has to work with from that point on.

Choosing between the options

The label states the cost or content up front, and it is enough to decide with. Weigh the stated cost against the stated content: a route charging four max HP dips into your health ceiling, a gold route pays you, and an event leads to a second set of choices that state their own prices. If a cost reads badly for where your run stands — low max HP, a deck leaning on a specific card — the other labeled options are sitting right next to it.

The same reading habit applies one level deeper inside events. Because both route options and event choices declare their costs up front, the price of a pick is on the screen before you make it, not after. Read the label, compare it with the alternatives beside it, then commit.

Where this fits in a run

Each floor descent hands you a screen like this, and each pick shapes what the run has to work with next: an event can rewrite your deck, a merchant restocks it, and the fights waiting on a route become the combat your deck then has to win. For how these descents chain together from the first floor to the end, the runs guide follows the full arc, and the heroes guide covers the hero making these calls.