BoneSpire
Bone-storing monuments with inventory-driven growth and expandable protection against hostile spawns.Bone Spire
Build bone-covered monuments that store Bone Fragments, grow as they fill, and protect the surrounding area from hostile spawns.
The spires
| Greater Bone Spire | Lesser Bone Spire | |
|---|---|---|
| Build cost | 100 Bone Fragments + 10 Core Wood | 20 Bone Fragments + 1 Core Wood |
| Inventory | 8 columns × 4 rows | 7 columns × 3 rows |
| Capacity | 1,600 Bone Fragments | 1,050 Bone Fragments |
| Growth | Increasing bone coverage on a fixed-height monument | A post that grows from approximately 1m to 8m |
| Protection | 50m base radius | Adds 5m to each qualifying Greater Spire |
Capacities assume the standard 50-fragment stack size. Mods that change stack sizes also change the spires' capacity and growth thresholds.
Both spires accept only Bone Fragments. Stored bones can be withdrawn, reversing their growth. Construction materials do not count toward inventory fill. An empty Lesser Spire is a bare wooden post; its bone covering and lashings appear together when bones are deposited.
Area protection
Each Lesser Spire within a Greater Spire's original 50m horizontal radius adds 5m to that Greater Spire's protection. The bonus applies regardless of the Lesser Spire's stored bones. Expanded protection does not recruit more distant Lesser Spires. Removing a qualifying Lesser Spire reduces the protected radius.
Protection blocks natural hostile spawns and raid attackers whose spawn locations fall inside the protected area. Ordinary neutral wildlife and Dvergr are unaffected. Existing enemies can still enter, and raids can still begin or spawn outside the boundary.
Boss summoning, physical creature spawners, console commands, and custom spawning systems from other mods are outside this protection.
Installation
Install Bone Spire through Thunderstore Mod Manager or r2modman, then launch Valheim through the manager. BepInExPack Valheim and Jotunn are required and are listed as package dependencies.
Both spires are available in the Hammer's Misc category / Storage tags. Discover Bone Fragments and Core Wood and have a workbench nearby to build them.
Updating
Update through your mod manager and restart Valheim. Existing spires use the new appearance and inventory dimensions automatically.
Stored items are retained. A spire with more stacks than its new grid can hold temporarily keeps extra rows so those items remain accessible. Withdraw the excess stacks to complete resizing. Additional deposits are disabled while those recovery rows are needed.
Compatibility
Early-access release for single-player Valheim. Multiplayer compatibility is not verified.
Empty and dismantle placed spires before removing the mod from a world you intend to keep.