Gibsons has sold out the first two production runs of its 221B Baker Street game.
The firm has completely sold out its first production run and all of the stock from the second production run is already presold.
New stock will be available from mid-November.
"We are delighted with the popularity of this master detective game," said Nick Wright, managing director at Gibsons.
"We are receiving calls daily from customers trying to track one down."
221B Baker Street sees players start at 221B and travel through the streets and alleys of London picking up clues and attempting to solve the most intriguing cases Holmes and Watson faced.