Summary:

Opus: Collector's Edition includes: - Opus: The Day We Found Earth - The Game - Opus: The Day We Found Earth - Original Soundtrack - Opus: Rocket of Whispers - The Game - Opus: Rocket of Whispers - Original Soundtrack - Opus: Rocket of Whispers - Official Artbook with Bonus World Map - Opus: Echo of Starsong - Full Bloom Edition - Opus: Echo of Starsong - Official Artbook - Opus: Echo of Starsong - Official Game Script Vol.1 - Opus: Echo of Starsong - Official Game Script Vol.2 - Opus: Echo of Starsong - Complete Soundtrack Vol.1 - Opus: Echo of Starsong - Complete Soundtrack Vol.2