Resources

Resources represent the Sanctuary's ability to grow and survive.

Resource	Purpose
Spirit Essence	Core construction, upgrades, troop training, and healing
Ironbark	Defensive and fortification progression
Obsidian	Premium currency and convenience systems
Ancient Scraps	Siege Wall and battle-earned fortification upgrades
Astral Ore	Advanced crafting and late-game progression target

The exact economy is still being tuned during the Rust rewrite.