Overview
Distinguish network allies from offline spirit summons and prepare each.
How it works
This guide breaks the topic into the concrete decisions that matter in an actual playthrough, separating progression requirements from optional improvements.
How to approach it
Follow the stages in order, then use the linked character, region, boss and equipment references when you need more detail.
Common mistakes
Do not assume optional steps are mandatory or that all encounters remain unchanged after major story progression.
Co-op and Spirit Ashes: how summons really work: step by step
Spirit Ashes
Spirit allies require the summon system, the right area and the necessary cost. They can be upgraded using different Glovewort materials and are independent of multiplayer matchmaking.
Network co-op
Cooperative players use multiplayer items and signs, with various limitations tied to areas and characters. A particular ally may be unavailable when the boss or area conditions change.
Boss coordination
A summoned ally can shift boss attention. Avoid attacking in parallel without awareness of area attacks; one player creating spacing lets another heal or recover stamina.
Invaders and risks
Online multiplayer introduces different PvP possibilities depending on items and session state. Treat co-op as a different system from solo spirit support.