The Butterfly Sign: Human Error Steam CD Key

About this licence

The Butterfly Sign: Human Error is the second chapter of the first person detective video game in which we are playing as a sole survivor of a serious terrorist attack. Protagonist is the only witness of the incident and his fate depends on his memories. That’s why he goes in for a desperate measure: he takes the experimental medication called “Rammex”, which immerses him in the depths of his mind and makes him accurately recollect a chain of events, which had happened. While wandering through his own memories, the protagonist has to look for evidences and learn bits and pieces to find the guilty persons…The main feature of the second chapter of the game is the concept of multilevel memories. Drug effect of Rammex makes the protagonist remember everything he has ever known, while maintaining freedom of action and choice inside his memories. This means that if the protagonist finds the de

Product details

System requirements

Product-specific requirements have not yet been verified. Check the publisher’s compatibility information before purchase or ask support to confirm your setup.

Activation & installation overview

1. 1Open your platform (e.g. Steam) and choose ‘Activate a Product’.
2. 2Enter the key from your secure order page.
3. 3The title is added to your library — download and play.

This is a general activation overview; publisher screens can vary by edition and version.