Daily Dive · Game 2026-10-03

Name a type of structure built underground (man-made)

These are the accepted Krillion answers for this prompt, ranked from the familiar surface picks to the deepest available answers. Scores and tiers are a dated snapshot of the public reveal.

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Accepted answer list

154 accepted answers and rarity scores

The complete accepted list for this Krillion prompt is sorted by score, from the most unusual answers to the familiar picks near the surface.

Score tiers 100 One in a Krillion 85 Deep Cut 60 Rare 30 Schooler 15 Too Clever 10 Plankton

01 Name a type of structure built underground (man-made)

154 official answers · tap a row to copy

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Denehole 100

Erdstall 100

Archive vault 85

Artificial cave 85

Auxiliary Units operational base 85

Barabara 85

Biogas digester 85

Canal tunnel 85

Catch basin 85

Cist 85

Cryptoporticus 85

Cycling tunnel 85

Earth lodge 85

Flood tunnel 85

Fogou 85

Freight tunnel 85

Geothermal well 85

Ghost station 85

Grease trap 85

Hiding complex 85

Hypocaust 85

Hypogeum 85

Infiltration gallery 85

Inspection pit 85

Leach field 85

Mikveh 85

Mithraeum 85

Ore pass 85

Piles 85

Pit latrine 85

Pumped storage cavern 85

Qargi 85

Qarmaq 85

ROC post 85

Rock-cut church 85

Rock-cut temple 85

Rock-cut tomb 85

Sardab 85

Seismic vault 85

Shaft tomb 85

Slurry pit 85

Soakaway 85

Souterrain 85

Stepwell 85

Stope 85

Storage cavern 85

Stormwater tank 85

Sump 85

Sunken courtyard yaodong 85

Tram tunnel 85

High-value picks

Deep Cut and rare answers for this prompt

The strongest accepted answer is 100 points. These higher-value picks are the ones to remember when you want to dive past the obvious response.

100 points · 2 answers

One in a Krillion answers

Denehole · Erdstall

85 points · 83 answers

Deep Cut answers

Archive vault · Artificial cave · Auxiliary Units operational base · Barabara

60 points · 48 answers

Rare answers

Aqueduct · Borehole · Burial vault · Cave house

Scoring guide

How Krillion scores this prompt

Krillion accepts more than one answer, but the rarity tier determines the depth. A correct answer is only the beginning: a 100-point pick goes much deeper than a common 10-point answer.

100 points · trench

One in a Krillion

2 accepted answers appear in this tier for this prompt.

85 points · hadal

Deep Cut

83 accepted answers appear in this tier for this prompt.

60 points · abyss

Rare

48 accepted answers appear in this tier for this prompt.

Prompt details