The Callisto Protocol: How to Unlock the Commonality Achievement - Gameranx

Duncan Cole is the result of a years-long project to make the most conspiratorial human on record. From the moment he shows up in The Callisto Protocol, he’s obviously up to something, but the game’s a little cagey about exactly what. There are a couple of secret rooms found over the course of the game …

The Callisto Protocol: How to Uncover the Mystery of Kallipolis (Commonality Trophy/Achievement)

Thomas Wilde, Author at Gameranx

The Commonality Trophy Unlock Condition: How to Uncover the Mystery of Kallipolis

The Callisto Protocol - All Secret Room Locations (Commonality Achievement Guide) - IGN

The Commonality achievement in The Callisto Protocol

The Commonality achievement in The Callisto Protocol

The Commonality achievement in The Callisto Protocol

The Commonality achievement in The Callisto Protocol

The Callisto Protocol: How to Get All Implant Bios in Chapter 3 - Gameranx

The Callisto Protocol - All Secret Room Locations (Commonality Achievement Guide) - IGN

The Commonality achievement in The Callisto Protocol

The Callisto Protocol - The Commonality Trophy Achievement Guide (Uncover Mystery of Kallipolis)