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

The Commonality is a trophy players can receive by collecting recordings from secret rooms in The Callisto Protocol. Read on to learn how to get to the secret rooms, how to uncover the mystery of Kallipolis, and how to get the trophy.

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

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

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

The Callisto Protocol: The Commonality Trophy /Achievement Guide

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