On 24 July 2026, the tracked implementation began with the Xcode project, a GameCore state skeleton, an explicit action pipeline, and the first deterministic shelter actions. Presentation would send intent, while plain Swift state and reducer logic would decide what changed.
The following day's work added progressive unlocks, local save and load, the first SwiftUI shell, and determinism tests. By the end of Phase 1, the project had the small form its definitions called for: a title, a sealed shelter, a few state lines, and actions that gradually expose the damaged drone.
That foundation fixed a boundary that remains visible in the current repository. GameCore can run without SwiftUI, Persistence stores rather than interprets state, and the interface renders state-backed actions.
Later surface, radio, combat, and ending systems all build on the same pipeline.
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