AUDIO BIBLE

Leviathan uses layered music beds (looping mp3s) plus a sample-or-synth SFX system: each cue plays its mp3 if loaded, otherwise a synthesized fallback, so the game is never silent even if a file is missing.

Music beds (moods)

An adaptive controller re-evaluates the mood ~1.6×/sec by field state (cosmic > active/incoming threat > late evolution > calm). The armed Spikefish warning counts as "incoming," so the bed transitions to threat once and holds through the telegraph — no calm↔threat stutter.

Stingers & SFX cues

• Merges play a per-species cue: Koi → lev_koi, Anglerfish → lev_anglerfish, Manta → lev_manta, Leviathan → lev_stinger_legendary; every other merge uses lev_merge.
• Fish drop = the first ~0.4s of lev_wet (a clipped wet plop), with a juicy synth fallback.
• Egg buy = its own lev_drop cue.
• Devour: Leviathan+ and the Anglerfish-on-fry use lev_devour; the Manta uses lev_manta_kill — but only for prey in her forward cone (same test as the spike duel); side/rear bumps use the light eat cue.
• Victory fanfare: plays lev_victory if present, else a triumphant multi-part synth fanfare (brass pickup → C-major hit → timpani → shimmer). Never depends on an mp3 loading.
• Mutation stinger is played at a slightly reduced volume.

Compliance & control

• Portal mute is honored via the real CrazyGames SDK v3 API — game.settings.muteAudio + game.addSettingsChangeListener — plus the ?muteAudio=true URL param. Portal mute overrides the in-game toggle.
• Settings menu (gear icon) exposes independent Music and Effects volume sliders and a Reduced-Effects toggle, all persisted.
• Alt-tab pauses music in place (no rewind) and resumes from the same position and mood.
• iOS audio context is resumed on the first touch/click.