99_SecretZone is the only double-digit zone label after the terrain labels (80–83) and the only one whose name claims hidden content. Nothing about its location, entrance or contents is verified.
Build labels
- 99_SecretZone
What this hints at
- Zone labels are derived from scene, terrain and mesh references in the release build.
- This page records label evidence only; gameplay claims are marked as unverified until reproduced in a released session.
Evidence note: zone labels come from the locally installed macOS Steam build (v1.4.7) inspected August 5, 2026. They are strong location evidence but not confirmation of gameplay mechanics.