Diod v0.1.0.21 — A real region to explore

- New worlds explore a 10 × 10 km Earth region centred on Fleminggatan 109, with the same geographic processing throughout its 100 km².
- OSM-derived water and natural-area features preserve the connected Stockholm waterways, islands, woodland, open ground and wetlands.
- Finer real elevation replaces kilometre-scale starter terrain. Hills follow the filtered source model; small ground texture no longer invents large landforms.
- Terrain, physical ground, rendered water, swimming and map geography share the regional source. Regional data is included for offline play.
- The pause map displays detailed gray unexplored geography, fits the supported region and reuses a source-derived overview for responsive pan and zoom. Explored terrain and changes remain live overlays.
- A clear physical region boundary and placement rules define the current playable area. The bunker retains its door and interior, with an engineered entrance surround and no artificial rock mountain in new worlds.
- Existing worlds and progress remain on their original terrain profile. Choose New detailed region / New Game to create a separate run using the new geography.

UPDATING AND SAVES
Close Diod and replace the complete application/folder. Existing worlds, inventories, construction, settlement progress and terrain are preserved. To see the new terrain, select New detailed region / New Game in the pause menu and confirm; this starts a separate run and retains/backups the older complete world. Keep complete save folders. Profile-6 worlds require v0.1.0.21 or newer; do not downgrade those saves.

SOURCE ACCURACY AND KNOWN LIMITS
- Elevation is a filtered surface model with variable source resolution. The 4 m geographic sampling grid and 1 m close mesh are not 4 m or 1 m surveyed terrain; small real cliffs can be softened. Lantmäteriet 1 m ground data is not included.
- Water surface levels are estimated and lake/channel bed depths are modeled. Modern city buildings, roads and bridges are intentionally absent from the reclaimed natural world.
- The earlier reported narrow geometry spire was not reproduced. Source data, bunker/tree bounds and focused generated geometry were checked, but native full-world Mac/Windows GPU appearance and fresh Mac Gatekeeper acceptance remain owner testing.
- Only the defined 10 × 10 km region is newly playable. The historical bunker Earth atlas remains a reference; it does not enable travel to distant destinations.

Geography provenance and reproducible source archive: https://diod.world/downloads/data/stockholm-10km-v1-source.zip

VALIDATION
linux: Final exported regional geometry/map/collision/save checks (47), legacy atlas checks (15), New Game and preserved save-path identity passed. Shared-code legacy metadata (19), swimming (32) and horse crossing physics (10) passed before the map-only optimization. Full-world desktop GPU playtest pending owner testing.
windows: Export, all native icon groups/sizes and four-part version checked. Shared gameplay validated in Linux export; native Windows GPU playtest and publisher signing remain pending.
macos: Universal x86_64/arm64 bundle identity/version checked. Fresh Developer ID signing, Apple notarization acceptance and stapling completed. Shared gameplay validated in Linux export; native Mac GPU playtest and fresh Gatekeeper assessment pending owner/local testing.