* Dune 1 is one my favourite games of all time. As stated before, the game uses a unique mix of adventure & strategy... and also has an amazing soundtrack & voice over. It's loosely based on Lynch's movie (which is why in-game Paul Atreides looks like Kyle McLachlan).
* Frank Herbert's Dune was the last Cryo game before they went bankrupt, and it shows. It's a bit of a broken game with bad controls & questionable design decisions - the game forces you into melee killing since ammo is ridiculously scarce, but melee killing can only be done from stealth; once the enemy has noticed you it's impossible to even attack the enemy in melee... forcing teh player to rely on the Bene Gesserit Voice power to stun the enemy & then go over to the kill.
This makes the game excruciatingly frustrating at times, especially since death means one must play the level again from the beginning. Still, I like this game a lot too (I'm a bit of a Cryo Interactive fanboy), since it's very faithful to the spirit from the book. It even uses hunter-killers & Tleilaxu facedancers in the game. It might be next to impossible to still find this game today, though.
* Dune 2000 & Emperor: Battle for Dune are worth playing for the brilliant cutscenes & Harkonnen campaigns alone.