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Large group (8+) · Rust base

The Hollow Caldera

Posted by the builder as The Atlas | Open Core Rust Clan Base Tutorial | 200+ Rockets

The Hollow Caldera is a large group (8+) Rust base design in the Tea Time base library, built from 4,187 building entities — multi-tc. Measured from the blueprint: 7 storeys, compound. Materials run about 203k wood, 20k stone, 492k metal frags, 2.2k HQM. A base this size fits the Taster plot (7,000 entities). Study the foundation footprint below, then connect to The Greenhouse — Tea Time's free creative build server — and rebuild it yourself with unlimited resources, free plots and no wipes.

Render — The Hollow CalderaRender

Raid profile

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See the measured rocket count, thinnest shell, cupboards and turrets before you commit the boom.

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Upkeep · per 24 h

Wood
31k
Metal
154k
HQM
600

What it costs per day to keep this base from decaying. Deployables are free — only blocks and frame inserts pay upkeep.

Structure

Floors
7
Footprint
19 × 20 m
Inside
6,641 m²
Beds
36
Storage
7,104 slots

Build cost & size

Entities
4.2k
Wood
203k
Stone
20k
Metal frags
492k
HQ metal
2.2k
Group size
Large group (8+)
Multi-TCCompoundExpensive to raidSheet metalSpaciousWalled compound

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