I'm new to DMing, and I want a really challenging and fun adventure for my friends.
My question is: what, in your opinion, makes an adventure actually interesting and fun?
Is it challenge? I know that when adventurers fear for their lives the adrenaline flows.
Is it the decision making? I don't think letting the players go through an adventure with no choices is fun.
Is it having a strong/useful character?
The answer to this question is somewhat dependant on opinions, but I believe there is something most would agree on.