Improved Portal

Improved portal is an upgraded version of the main stockpile, which allows dwarfs to make expeditions and search for additional resources in biomes, by using the multiplayer game spell.

Once crafted, the improved portal cannot be downgraded, and the spell to access biomes will henceforth be available in the inventory among other spells.

Crafting recipe
This item cannot be bought at the shop and can be crafted only once.