Welcome to Three Line Studio


The publishing house

of American author and designer


Robert J. Kuntz

Design Philosophy - Systems Theory - RPG History



Dave Arneson's True Genius

The FIRST book ever written

on D&D's co-designer!


 🎄 Christmas Special $14.95 🎄


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.

Our RPG     Brand:

TLB Games

is an RPG brand of

Three Line Studio.

TLS  Publications:

TLS is the publishing house of Robert J. Kuntz.

RJK Intellectual Property:

Coming soon.

Our Partners:

© Three Line Studio 2017