Dune, the 1992 strategy and management game, may have been the first Dune video game, but is largely overshadowed by its nominal sequel Dune II: The Building of a Dynasty, the grandfather of modern real-time strategy. While technically part of the Dune II series of strategy games, Dune never received any spiritual sequel. Its creator Cryo Interactive Entertainment would take on the Dune license once more with the 2001 stealth action game Frank Herbert’s Dune, but went under the following year.

The Herbert estate did not seem to be interested in handing to the Dune license to anyone anyway, and for years, the franchise primarily lived off a series of new Dune novel by Frank Herbert’s son Brian and Kevin J. Anderson. With the advent of a new Dune film adaptation by Denis Villeneuve, this changed. One game, however, dodged the issue of licensing entirely. In 2016, David Goujard, a French developer of adult-themed Flash games, released Behind the Dune.

Behind the Dune is very much based on the 1992 Dune game, but adds large mammaries and significant amounts of reproductive bodily fluids. The basic story is left intact: Paul Atreides and his family travel to the planet Arrakis, the only known source of Spice in the universe, to bring glory to their noble and house and defeat their arch rivals, the evil Harkonnen. A new addition is Paul’s high libido, which adds a new goal to the game: having intercourse with as many of the female characters as possible. Most of the cast of Behind the Dune are women, and all of them are equipped with a sizable bust.

Despite the focus on dialogue and a shift into the direction of visual novels, Behind the Dune does not fully abandon the management aspect of Dune. Paul has to harvest Spice to win the game, buy Spice harvesters to accelerate production, and recruit the native Fremen tribes to help him defeat the Harkonnen. Spice production is measured in tons harvested per day, and servers as the game’s progression system. Raising Spice production to certain levels will unlock new powers, like being able to command the Fremen from anywhere on the planet, and advance the plot.

This may sound like a lot of work for a porn parody, but in reality, Behind the Dune is a lot more forgiving than the game it is based on. There are only a handful Fremen sietches, and Spice replenishes itself. Even a clumsy or unlucky player can beat a game with a bit of patience. Or without patience: one of the unlockable powers allows the player to speed up time and watch their Spice coffers fill up in no time.

Another aspect lifted straight from the original Dune are the companions. Paul can ask a number of characters to accompany him on his journey, which opens up new dialog options and makes additional cutscenes accessible. Some companions are needed to solve Behind the Dune’s puzzles, which are not too difficult but somewhat creative and sometimes even allow multiple solutions. The player’s choices also determine what ending they get, which in this game’s context boils down to unlocking one of several possible sex scenes.

Despite its lecherous nature, Behind the Dune comes with fairly high production values. The cartoony art style convinces by itself and as an homage to the original game’s slightly alien looking characters. The soundtracks is good, if limited, and the interface is intuitive. In addition to the Dune video game and the David Lynch film adaptation, numerous references to Frank Herbert’s original novels are included as well, indicating that Goujard did his homework. Even a mode for those not interested in erotic content is included; it drops all outright pornographic imagery but leaves the puzzles and management aspects intact.

Overall, Behind the Dune is a surprisingly polished product, possibly more so than the game it is based on, and puts more effort into its parodical elements than other Dune spoofs such as the shallow National Lampoon’s Doon, and has things to offer beyond being a template for sexual gratification.