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Rime Vent

Rime Vent, a Firnreach building, standing alone on packed snow in daylight.

Building · Defense

Rime Vent

A 2-cell wall that breathes dead light: a freezing mist 2 cells out from both faces. Enemies in it move 30-55% and attack 20-45% slower (by level; bosses half as much). Needs power; R turns it. Unlocks after Night 2.

Category Defense
Main crystal Obsidian (builds walls and pays for upgrades.)
Build cost 10 Amber, 30 Obsidian
Upgrades give +HP, +Stronger slow field

The cost on level 1 is the build cost; on later levels it is the cost to upgrade to that level. Your Base’s level caps how far every other building can be upgraded.

Level HP Power store Power use Cost
1 450 100 5 10 Amber, 30 Obsidian
2 900 150 6 90 Obsidian
3 1800 200 8 175 Obsidian
4 3600 300 10 300 Obsidian
5 7200 400 12 475 Obsidian
6 14400 600 15 700 Obsidian
7 28800 800 18 1050 Obsidian
8 57600 1000 22 1750 Obsidian