So many different aspects to it
It starts out that you are a prince who lives on Dune and your dad sends you out to befriend Freman so they will dig spice for you (spice is a drug, stuff runs off it, it is used for currency) and you have to constantly dig it so the ruler of the universe doesn't get pissed and kill you. All the while there is Harkonens that what you and your family dead. So you adventure starts by you searching the world for more spice and freman who you will eventually turn in to warrior; and in a way a risk like setting occures where terrorise of yours attack Freman. You also get to fly a ship around the map with ever changing terrain and you also get to explore your castle in a first person perspective.
This game could be credited for being the catalyst that started other games.