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Welcome to Three Line Studio


The publishing house and agency

of American author and designer


Robert J. Kuntz

Design Philosophy  |  Systems Theory  |  RPG History




The FIRST book ever written

on D&D's co-designer!



The Archive contains over 1,000 high resolution scans of adventures, maps and keys, campaign notes, character sheets, and manuscripts from the Original Greyhawk, Kalibruhn, and Blackmoor Campaigns.

Sunken City is an expanded version of Rob Kuntz's original 1975, GenCon VIII single-round tournament adventure. Listed in the original GenCon VIII program as 'D&D for Prizes' with the convention's chairman, Rob Kuntz, listed as the referee.


The Red Book Line:

The Red Book is Three Line Studio's primary RPG line.

TLS  Publications:

TLS is the publishing house and agency of Robert J. Kuntz.

Special RPG Brand:

TLB Games

is an RPG brand of

Three Line Studio.

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