As if awakening from a deep sleep, you find yourself in a strange, contradictory world of ancient ruins and advanced technology. Tasked by your creator with solving a series of increasingly complex puzzles, you must decide whether to have faith or to ask the difficult questions: Who are you? What is your purpose? And what are you going to do about it

Features:
Overcome more than 120 immersive puzzles in a stunning world.
Divert drones, manipulate laser beams and even replicate time to prove your worth - or to find a way out.
Explore a story about humanity, technology and civilization. Uncover clues, devise theories, and make up your own mind.
Choose your own path through the game's non-linear world, solving puzzles your way.
But remember: choices have consequences and somebody's always watching you.

SYSTEM REQUIREMENTS
Windows Mac OS X SteamOS + Linux

MINIMUM:
OS: Windows Vista 32-bit
Processor: Dual-core 2.0 GHz
Memory: 2 GB RAM
Graphics: DirectX 10 class GPU with 512MB VRAM (nVidia GeForce 8600 series, AMD Radeon HD 3600 series, Intel HD 4000 series)
DirectX: Version 9.0c
Storage: 5 GB available space
Sound Card: DirectX9.0c Compatible Sound Card
Additional Notes: Windows XP 32-bit (with service pack 3) can run the legacy version of the game, but it is no longer being updated.

RECOMMENDED:
OS: Windows 7 64-bit
Processor: Quad-core 3.0 GHz
Memory: 4 GB RAM
Graphics: DirectX 11 class GPU with 1GB VRAM (nVidia GeForce 480 GTX, AMD Radeon HD 5870)
DirectX: Version 9.0c
Storage: 8 GB available space
Sound Card: DirectX9.0c Compatible Sound Card