What are your thoughts on dungeons in RPGs with poison as (one of their) their main mechanics?

Haven't encountered a game with poison-themed dungeons yet, or at least... none that came to mind... maybe a tiny part of Dark Souls 3? Either way, can't have any strong opinions about it one way or the other. Also I don't mind menu-diving :P

When I DM for my D&D group, I almost never use traps of any kind. But when I do, they tend to be nearly fatal.
I think the kind of traps you describe are just boring. They are a very artificial way to add "tension" (quotes because it's not what happens) but only manage to drag things out until it becomes boring and unengaging.

They can be annoying but i don't mind em most of the time, it adds variety to the games.

Well most of the games I played have such poison as long as it's not overdone. Some even have reduced healing ability when contacted with poison which is the annoying part of the game...

Haven't played a game in a while with a similar dungeon (except Dark Souls last year) but I really dislike environments like you mentioned. At least DS made it clearer for me that how irritating a poison can be, even if it deals fairly low damage, and how much of a problem is if you don't have endless resources to cure the poison and/or heal afterwards. It's a mindgame, trying to trick people into using up stuff against the poison, while bleeding them try. Though the result is also kind of not cool - if the poison has high damage it is a real pain in the ass, and if you can heal it without issues ( spell + recharging mana) it just pads the game, which is also an unwelcome addition.

Personally, I find that the only kind of mechanic more annoying than the one that slashes off a significant percentage of your HP every measure of time until you die is the one that makes you never hit anything (except maybe yourself), including failing to attack at all. That kind of thing looks like it's designed to simply irritate the player. My beef with those mechanics is that designers always seem to abuse them, rather than merely use them.

Thanks for the train.

I like DoTs and debuffs, I always play the support/debuffer class in any MMO if there's anything like that available.

I hate how poison is done in most games though, a permanent DoT that has to be cured each time. It's almost useless to use on enemies because they generally die before it can do a significant amount of damage but when you get hit with it you're taking damage every step and every round in combat. Very few games have poison that lasts for a certain amount of time then wears off on it's own, which still sucks but isn't nearly as bad.

I think my favorite way it was done was in Fallout/Fallout 2 where some of the areas had toxic sludge on the ground that would cause damage with each step. You could find rubber boots to make you immune, but the the sludge would eat through them after a while so you had to hurry up in those areas.

I don't think I'd have any favourite poison dungeon, but I do agree the poison mechanic can make or break the fun and immersion. It really depends on how the ailment works. Sometimes it can be a good wakeup call, as in "hey idiot, the NPCs in the previous village told you to stock up on antidotes, you dun goofed", and that's okay, but if it just serves for padding (e.g. constantly making you grind for antidotes and/or exit for healing because there is no better strategy) then it's definitely obnoxious. I mean unless being obnoxious is a game mechanic in itself, then it kinda fits the bill.

Also, how about the opposite? Many games with poison require some sort of support skill or unit (or items) to deal with enemy/environmental poison, but how many reward proper poison usage from the player's side? I'm instinctively thinking of Etrian Odyssey, where some monster drop conditional require the monster to either die poisoned or even to die from Poison Damage. I'm usually not much of a debuffer/ailment disher but that series made crippling enemies fun and rewarding, haha.

bump

Anything can be good if done correctly. If the mechanic is implemented well and fits thematically then by all means. I was just talking to someone that said that games should never have escort missions and I laughed as they're such a basic and prevalent thing that they're not really going anywhere but agreed that they certainly need to be worked on in most games.

It depends on implementation. Generally I dislike any mechanics that can one-shoot player so if game give some chance to beat it then they're ok.

I think they're a bit annoying but I see it as a sort of necessary challenge I guess?