The 'Opus Collection' for Nintendo Switch is a compilation package that includes 'Opus: The Day We Found Earth' and 'Opus: Rocket of Whispers'. Both games are created by Taiwanese indie game developer SIGONO and are known for their emotional storytelling and atmospheric gameplay. 'Opus: The Day We Found Earth' is a puzzle adventure that has players searching the galaxy for Earth, while 'Opus: Rocket of Whispers' is an adventure game that follows the story of two survivors in a post-apocalyptic world as they work to build a space rocket. The collection released in 2019, offering a blend of exploration, narrative, and puzzle-solving in a compact indie experience.