Welcome to Arakkis, commonly referred to as Dune. It's a harsh, unforgiving world, but is also the most important planet in the Imperium. Having an introductory guide would be good, and that's just what Desertfall is for the Dune: Adventures in the Imperium RPG. You can pick up your copy now.
From the website:
This 34-page introductory adventure for the Dune: Adventures in the Imperium roleplaying game brings the player characters to Arrakis to prepare for the arrival of House Atreides. Soon after planetfall, the player characters must ensure the official Residency is secure and try to unearth any spies, assassins, or other potential threats that may be lurking in Arrakeen.
Desertfall can be played using the pregenerated characters included, but will work equally well with a new group of player characters from a different House.
This new version of Desertfall has undergone a few small changes since its release as part of the Corebook Preview. We have adjusted the presentation of some characters, but we’ve also taken the opportunity to offer new guidance about adapting this adventure to an ongoing campaign with a House of your own, and included additional notes on how to continue the adventure if some of the sub plots are not resolved.