BIRDUP
Become a crow from the G menu. Collision-aware forward flight, momentum, sprint and pitch controls, local flight energy, compact hitbox and hidden player markers. Standalone; install on server and all clients.HearthBird
Become a crow from Valheim's native G radial menu. HearthBird is a standalone mod for every player; HearthSort is optional and independent.
Optionally bind Bird form — HearthBird in Settings → Keyboard & Mouse. Scroll to the bottom, click its empty binding box, press a key or mouse button, then choose OK. The shortcut toggles both into and out of bird form; the G-menu action remains available. It starts unbound. Native Delete clears it, Escape cancels capture, Back discards changes, and Reset controls returns it to unbound.
Press Jump to take off, aim to steer, hold Sprint to speed up, and descend or use Crouch to approach a landing. Flight always moves forward, builds momentum quickly, slows during climbs and accelerates during dives, with a hard speed limit. Select Return to Viking to change back.
The crow can stand and move on the ground. It uses a compact solid collider, with collision-aware flight and safe restoration of the human collider. Transformation adds a subtle feather puff.
Flight energy provides 15 seconds of normal flight and recharges from empty over 60 seconds while human or grounded. Sprint flight uses 15% more energy. The percentage meter sits above stamina and appears only in bird form below full energy. Charge persists through toggles and character saves, including existing charge from the older combined HearthSort mod.
Other players see the bird with overhead names, healthbars and hover labels hidden. Bird players also disappear from other players' map and minimap icons; normal sharing resumes in human form. Your own navigation arrow remains visible.
Install
Version: 0.1.1 beta. Built against Valheim 1.0.17.
Install the same HearthBird version on the server and every client. The package requires BepInExPack Valheim 5.4.2351 and Jotunn 2.30.2. HearthSort is not required. For manual installation, close the game and copy the ZIP's BepInEx folder into the game or selected profile. Keep one HearthBird.dll at BepInEx/plugins/HearthBird/HearthBird.dll.
If you currently use a combined HearthSort build through 0.1.14, replace it with the sorting-only HearthSort 0.1.15 or remove it before enabling HearthBird. See docs/MIGRATION.md. Existing chest rules and settings stay with HearthSort.
Details and validation
Full controls, physics, networking and energy behavior are in docs/BIRD-FORM.md. Energy tracking is local; the server shares authenticated bird identities. Map hiding reuses those identities. No extra energy, clearance or map-visibility messages are added by the split.
Automated flight, input, energy, migration and installed-game contract checks pass. Independent and combined live multiplayer sessions still need verification. Startup checks all 17 bird hooks and logs:
Hearth Bird 0.1.1 loaded; all 17 bird hooks verified.