
The Butterfly Sign is a detective story putting players into the role of the survivor of a disastrous incident. The protagonist takes an experimental drug which immerses him in the depths of his mind. In his memories, he will discover the ones responsible for the disaster, little by little, step by step…





You gave a wrong explanation everywhere.

Is it interesting?

You did not ask too many questions to Romanov.

You did a mistake 10 times entering a password.

You have passed the first chapter on one of the difficulties.

You have passed the first chapter on the highest difficulty.

And why do they have so many refrigerators...

Why such a hurry?
Minimum Requires a 64-bit processor and operating system OS *: Windows 7, 8 or 10 (64bit) Processor: Intel Pentium G3258 or AMD FX-4300 Memory: 4 GB RAM Graphics: GTX 560ti or R7 260x DirectX: Version 11 Storage: 18 GB available space Recommended Requires a 64-bit processor and operating system OS: Windows 10 (64bit) Processor: Intel Core i3-6100 or AMD FX-8300 Memory: 8 GB RAM Graphics: GTX 680 or R9 280x DirectX: Version 11 Storage: 18 GB available space
Minimum OS: OS X 10.9 Processor: Dual-core Intel, 2 GHz Memory: 4 GB RAM Graphics: Intel Iris 550, OpenGL 4.1 compatible Storage: 22 GB available space Recommended OS: OS X 10.11 Processor: Quad-core Intel, 2.2 GHz Memory: 8 GB RAM Graphics: R9 M370X, OpenGL 4.1 compatible Storage: 22 GB available space
Minimum OS: Any reasonable new Linux distro Processor: Quad-core Intel, 2 GHz Memory: 4 GB RAM Graphics: GTX 660 or higher with latest NVIDIA binary drivers Storage: 18 GB available space Recommended OS: Any reasonable new Linux distro Processor: Quad-core Intel, 2.2 GHz Memory: 8 GB RAM Graphics: GTX 680 or higher with latest NVIDIA binary drivers Storage: 18 GB available space