Realm of the Desert Sons (German: Im Reich der Wüstensöhne) is a German-style board game published in 2008 by Klaus Teuber, published by Kosmos in Germany.
Unlike the previous game, Realm of the Jade Goddess, Desert Sons was available for a wide release, though there are no plans to publish the game outside of the original German language.
However, a computer implementation has been available on the Catan GmbH website, with a full English language translation.
Desert Sons is considered to be the middle game in terms of complexity in the trilogy, roughly on par with the original Entdecker.
Each player is also given one tile in reserve, and two water stones, which act as the game's currency.
Oases are considered complete if they are entirely surrounded by desert or the edge of the game board, when they are scored.
The rumor tiles are turned face-up, and the player with the greatest total value of merchandise wins, with the number of water stones as a tiebreaker.