For a D-D session the players need no preparation, and indeed, players should not read the content of this rulebook!
Partial information and the element of surprise are key elements of D-D. But if you, the reader, want to be a Game Master, then download and read the rulebook: this is the reference manual that will guide you through the process of mastering D-D sessions.
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Decisions & Disruptions is published under the Creative Commons licence
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Models built of LEGO® bricks and components. LEGO® is a trademark of the LEGO Group of companies.