HEART OF STEAM - HEART ARCHIVE v1.0

Official Wonders Workshop companion materials.

Included in this complete archive:
- Notes Between Heartbeats - Lyra Ashcroft's five-entry post-finale private journal (PDF, 8 pages; contains trilogy spoilers).
- Three Cities, One Heart - illustrated guide to Aetherholm, Velmira, and Lunaris (PDF, 10 pages; light setting spoilers).
- Aurum - Witness in Brass - illustrated profile of Lyra's mechanical companion and witness (PDF, 6 pages).
- Open Custody printable poster (PDF).
- Open Custody desktop wallpaper (16:9 PNG).
- Open Custody mobile wallpaper (9:16 PNG).

The full-resolution Open Custody poster PNG is available as a separate download on the official Heart Archive page.

Personal, non-commercial use only. Personal printing and device wallpaper use are permitted.
Do not sell, redistribute as a competing download, or claim these materials as your own.

Copyright 2026 Wonders Workshop.
