Shadeydm said:
Save or die
Energy drain
Death
Damage
Vanican magic
Running out of resources (spells etc)
Gnomes
Iterative attacks
Sleeping (for new or to change spells)
Hit points
Failing skill checks
Missing attack rolls
Failing saving throws
I've got to totally disagree with your list. Some things are just zero fun (example being Energy drain, which sucks because you're almost guaranteed to lose a ton of experience).
But failing a skill check? Come on, why bother rolling the dice then? If there's no chance of failing at something, where's the fun? Failing a single check or attack or save might suck, but without that chance to fail,
nothing would be fun.
I think genuinely un-fun things are:
-Having a character have zero chance of contributing to an encounter in some way. DnD is a game, and if you're sitting there doing nothing, you're not having fun. There's no reason why a player should have no options. I'm glad that in 3.5, damage reduction turned from a "you can't breach it so you're worthless" to a "you can still contribute, just not as much" ability.
-Energy drain sucks for reasons mentioned above. Getting the drained levels back is
guaranteed to cost you experience, potentially a LOT of it. Getting energy drained is essentially the same as negating months of playing time for the character. Nothing sucks worse than that.
-Save or die spells suck because there's nothing that you can do to prevent them, and they're far too dependent on luck. Now, spells that take you out of the fight aren't bad, because at least your mates can cover for you. But 'roll a 1 and you're just dead' is just lame.