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Base

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

Building · Utility

Base

The camp’s furnace, with a Heartstone core: it’s what the enemies go for, and where Heartstones are banked. Upgrading it unlocks higher levels for towers and player skills.

Category Utility
Main crystal All crystals
Build cost 10 Red, 10 Purple, 10 Amber, 10 Obsidian
Upgrades give +HP (the Base also raises every upgrade cap)

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 Cost
1 500 10 Red, 10 Purple, 10 Amber, 10 Obsidian
2 750 100 Red, 100 Purple, 100 Amber, 100 Obsidian
3 1100 200 Red, 200 Purple, 200 Amber, 200 Obsidian
4 1500 350 Red, 350 Purple, 350 Amber, 350 Obsidian
5 2000 550 Red, 550 Purple, 550 Amber, 550 Obsidian
6 3000 800 Red, 800 Purple, 800 Amber, 800 Obsidian
7 3000 1200 Red, 1200 Purple, 1200 Amber, 1200 Obsidian
8 4000 2000 Red, 2000 Purple, 2000 Amber, 2000 Obsidian