Also along the way the players learn and adapt. In my last session the players drew the skeletons attention and then backed up into a corridor limiting them to 2 abreast. Previously they would have charged in and been surrounded by the skeletons. Death may well have then occurred.
I saw on a forum, I can't remember, a great example of a starter adventure, it had things like trapped doors, poison dart traps etc.
Just thinking about it, if you wanted to just give them a taste before rolling into something really big write up a small 5 room or so dungeon. Put in doors with traps, fake floors, monsters in some places, but not in others. So a chest that is normal and one that is a mimic that old cliche. Then introduce them with a kind of groundhog day, a temporal loop put in place by a bored demi god. Every time you hit a TPK just roll back the day and they start again.
Although I have to say my party are quite keen on the idea of dying atm as I said now we are getting more of a feel for the rules they wouldn't mind different races and classes
