Launch cleared the run store before generating, and a generation or staging failure only reached the log: the
Generating Galaxy dialog stayed up, StartGame threw, and the saved run was already gone.
RunSave.Replace runs a start with the saved run still stored: when it returns a staged run the saved run's records go,
and when it returns null or throws, only the records it wrote (the arena's orbits and bodies) go. StartGame's
new-run branch is StartScenario, chosen by PendingScenario rather than by the absence of a SavedGame; it mints into an
empty ledger, and a failed start clears CurrentGalaxy (so quitting saves nothing) and refuses on the main menu with
every failure. Launch no longer clears; a galaxy that throws is refused on the title menu. The menu offers Continue
whenever no run is live, which replaces MainMenu.InGame (cut, with its prefab value and scene override), so a
failed start can resume the saved run in place.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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