Fract OSC - GOG version

Official site: http://fractgame.com/
GOG: http://www.gog.com/game/fract_osc

"What's cool about it:

Explore and decipher a beautiful open world.
Make music and shape sound as you progress through the game.
Compose your own music in the Studio.
Save, export and share your musical creations with others.
Experience unique TRON-inspired visuals.
Enjoy an evolving score composed by Mogi Grumbles and you.

Overview:

FRACT is a musical exploration game. You arrive in a forgotten place and explore the vast and unfamiliar landscape to discover the secrets of an abandoned world that was once built on sound. As you start to make sense of this strange new environment, you work to rebuild its machinery by solving puzzles and bring the world back to life by shaping sound and creating music within the game.

FRACT features a beautiful open world to explore and decipher with music-based puzzles, stunning visuals, and an amazing score that evolves as you play. As you progress through the game, you unlock tools to make your own music in the FRACT studio, where you can also export and share your creations with others.

Minimum system requirements: Windows 7 / 8, Core i5 2.2 GHz or equivalent Processor, 4 GB RAM, Radeon 5850 graphics card or equivalent, DirectX 9.0c, 1.5 GB HD space, Sound card required. Headphones and/or external speakers recommended."