toucanbuzz
No rule is inviolate
It's hard to translate to 5E. A lot of AD&D play was much like the exercise "you crash land on the moon and you can only bring with you 5 items..." For example, the amazing boxed set adventure "A Little Knowledge" involves being abandoned in the desert with nothing but your loincloth and your wits. A 5E ranger simply says "I walk out of the desert" because I can't get lost and my foraging checks are awesome, or a 5E wizard says "I can cast Cantrips indefinitely" so I'm never unarmed. The challenge and stress in the story of survival gets lost this way. In AD&D, there wasn't an auto-win. Players had to be clever and describe ways to succeed that weren't covered in a rule book.I really, really like the idea and setting of Dark Sun.
I have no ideas for a campaign that I would actually want to run there, though.
The campaign ideas are endless if you get ahold of the AD&D sourcebooks as the setting was shrouded in mysteries, leaving it to the individual DM to present a world that excites the player. Thematically, it was dark. No gods, no higher morality, and survival its own reward.