A Scenario is an abstract C# class compiled with the game: Generate picks the galaxy through GalaxyStage (Main or
Prelude, at the scenario's seed, the background noise drawn from the same seed), Stage places the run's first
entities through ScenarioStage (Fit, Bare, Generated, Preset, Player, Place, Cargo), which collects named failures
and admits nothing. RunStart generates the galaxy, the arena under Ambient and admits everything through Zone.Admit,
all or nothing. The aetheria.scenario record, ScenarioShip, ScenarioEntity, RunStart.Check and the null-scenario
branch are cut.
New Game opens a submenu: Tutorial Galaxy and Main Galaxy, then (editor and development builds) Djinni Shakedown,
Starved Reactor, Arcs, Duel, Launcher Angles and Long Haul, each with its brief. MainMenu.Launch is the one way into a
new run; ActionGameManager.PendingScenario carries the scenario to StartGame once.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
