Choir · structure · 3 × 2 tiles
Resonator
Air upgrades and longer range

Role
Researches Hull Facets, Lamp Tuning and Long Bolt. It requires the Threshold and must stand inside a Prism's field. Unlocks the Strider, the Cloister, the Lathe and the Aperture.
Look
A low alloy plinth with a leaning stack of flat glass discs of decreasing size, each floating a gap above the next. An alloy mast stands beside the stack, and every gap is lit, so it reads as a column of light.

Stats
| Cost | 200 ore |
|---|---|
| Build time | 37.8 s |
| Hit points | 500 |
| Ward | 500 (regenerates; +1 per Ward Tuning level) |
| Armor | 1 |
| Footprint | 3 × 2 tiles |
| Requires | Threshold |
|---|---|
| Sight | 10 tiles |
Eight facings · in-game sprite
E
NE
N
NW
W
SW
S
SENearest-neighbour enlargement of the baked sprite. The game draws units at 32 pixels per map tile.