Krillion Dive #80 · Prompt 3 of 7
Name a type of structure built underground (man-made)
176 accepted answers from the October 3, 2026 public reveal, organized across 5 scoring tiers.
176accepted answers
2100-point picks
10585–100 point picks
5,454answers in this dive
Deepest official tier
100-point answers
These answers sit in the One in a Krillion tier on this dated reveal sheet.
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176 answers shown
One in a Krillion100 points · 2 answers
- Denehole100 pts
- Erdstall100 pts
Deep Cut85 points · 103 answers
- Archive vault85 pts
- Artificial cave85 pts
- Auxiliary Units operational base85 pts
- Barabara85 pts
- Biogas digester85 pts
- Canal tunnel85 pts
- Catch basin85 pts
- Cist85 pts
- Columbarium85 pts
- Cryptoporticus85 pts
- Cycling tunnel85 pts
- Duct bank85 pts
- Earth lodge85 pts
- Flood tunnel85 pts
- Fogou85 pts
- Freight tunnel85 pts
- Geothermal well85 pts
- Ghost station85 pts
- Grease trap85 pts
- Hiding complex85 pts
- Hypocaust85 pts
- Hypogeum85 pts
- Infiltration gallery85 pts
- Inspection pit85 pts
- Leach field85 pts
- Mikveh85 pts
- Mithraeum85 pts
- Nilometer85 pts
- Ondol85 pts
- Ore pass85 pts
- Piles85 pts
- Pit latrine85 pts
- Pumped storage cavern85 pts
- Qargi85 pts
- Qarmaq85 pts
- ROC post85 pts
- Rock-cut church85 pts
- Rock-cut temple85 pts
- Rock-cut tomb85 pts
- Sardab85 pts
- Seismic vault85 pts
- Shaft tomb85 pts
- Slurry pit85 pts
- Soakaway85 pts
- Souterrain85 pts
- Stepwell85 pts
- Stope85 pts
- Storage cavern85 pts
- Stormwater tank85 pts
- Sump85 pts
- Sunken courtyard yaodong85 pts
- Sunken tandoor85 pts
- Tram tunnel85 pts
- Undercroft85 pts
- Underground aquarium85 pts
- Underground bathhouse85 pts
- Underground boiler room85 pts
- Underground bus station85 pts
- Underground cinema85 pts
- Underground dam85 pts
- Underground data centre85 pts
- Underground factory85 pts
- Underground farm85 pts
- Underground fortress85 pts
- Underground funicular85 pts
- Underground garden85 pts
- Underground granary85 pts
- Underground greenhouse85 pts
- Underground hangar85 pts
- Underground hospital85 pts
- Underground hotel85 pts
- Underground library85 pts
- Underground magazine85 pts
- Underground museum85 pts
- Underground nightclub85 pts
- Underground office85 pts
- Underground postal railway85 pts
- Underground power station85 pts
- Underground public toilet85 pts
- Underground pumping station85 pts
- Underground quarry85 pts
- Underground railway depot85 pts
- Underground reservoir85 pts
- Underground restaurant85 pts
- Underground sauna85 pts
- Underground school85 pts
- Underground sewage treatment plant85 pts
- Underground shooting range85 pts
- Underground sports hall85 pts
- Underground storage tank85 pts
- Underground street85 pts
- Underground submarine base85 pts
- Underground substation85 pts
- Underground telephone exchange85 pts
- Underground theatre85 pts
- Underground warehouse85 pts
- Underground water tank85 pts
- Underground water treatment plant85 pts
- Underground wind tunnel85 pts
- Utility vault85 pts
- Wheelhouse85 pts
- Wildlife tunnel85 pts
- Winze85 pts
Rare60 points · 50 answers
- Aqueduct60 pts
- Borehole60 pts
- Burial vault60 pts
- Cave house60 pts
- Cellar dwelling60 pts
- Cesspit60 pts
- Cistern60 pts
- Crawl space60 pts
- Culvert60 pts
- Dugout60 pts
- Earth oven60 pts
- Earth-sheltered house60 pts
- Elevator shaft60 pts
- Escape tunnel60 pts
- Foundation60 pts
- Foxhole60 pts
- French drain60 pts
- Icehouse60 pts
- In-ground pool60 pts
- Kiva60 pts
- Manhole60 pts
- Military tunnel60 pts
- Mine tunnel60 pts
- Nuclear waste repository60 pts
- Oil well60 pts
- Ossuary60 pts
- Particle accelerator60 pts
- Pedestrian tunnel60 pts
- Pipeline60 pts
- Pit house60 pts
- Qanat60 pts
- Road tunnel60 pts
- Secret tunnel60 pts
- Seed vault60 pts
- Septic tank60 pts
- Smuggling tunnel60 pts
- Storm drain60 pts
- Sub-basement60 pts
- Trapping pit60 pts
- Trench60 pts
- Tunnel network60 pts
- Underground base60 pts
- Underground city60 pts
- Underground laboratory60 pts
- Underground mall60 pts
- Underpass60 pts
- Underwater tunnel60 pts
- Utility tunnel60 pts
- Vault60 pts
- Ventilation shaft60 pts
Schooler30 points · 15 answers
- Bomb shelter30 pts
- Catacombs30 pts
- Cellar30 pts
- Crypt30 pts
- Dungeon30 pts
- Fallout shelter30 pts
- Missile silo30 pts
- Railway tunnel30 pts
- Root cellar30 pts
- Storm cellar30 pts
- Subway station30 pts
- Tomb30 pts
- Underground garage30 pts
- Well30 pts
- Wine cellar30 pts
Plankton10 points · 6 answers
- Basement10 pts
- Bunker10 pts
- Mine10 pts
- Sewer10 pts
- Subway10 pts
- Tunnel10 pts
How to use this page
Check fit before chasing rarity.
- 1
Read the wording literally. A spectacular answer outside the category earns nothing.
- 2
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- 3
Balance depth and certainty. An 85-point answer you can type cleanly can beat a risky guess.
More from Dive #80
Explore the other prompts.
Sources
- Krillion public reveal for 2026-10-03 — prompt, accepted answer, tier and score records.
- Official Krillion game — the live game remains the final authority.
- Data and editorial policy — how this archive handles normalization and updates.