What RPGs have smell mechanics?

[Val the Moofia Boss]

The only ones I am aware of are FF11 and the prototype for Monster Hunter World (the T-rex would begin following the player's scent/path taken after losing track of him visually).

[DagothGeas5]

Not sure if it was a mechanic or not, but Orc Dogs and other enemies in Gothic 1 did a sniffing animation and, in the case of Orc Dogs, they would track me for very long distances (slowly stalking behind) that I saw.

Not a game in and of itself but a mod, but I recall there being a mod for Skyrim with a very long name that added mechanics to werewolves, werebears and some sort of were-lizard like climbing trees, digging (in the case of the lizard) and there was a wind and scent mechanic that the author was very proud to have made. I cannot find it from my search, but I am 100% sure it was not the most pushed by sarch engines one (called Moonlight Tales). It was somewhat niche but I recall it being on nexus.
Edit: Found it! Took me a while, but it is this mod called Nature of the Beast (though it is not the name I know it for, so I am guessing it was revisioned multiple times, the look of the mod page is also very different from what I remember where, instead, the "lizard" was featured multiple times)
https://www.nexusmods.com/skyrim/mods/12448

This is what it says about the scent mechanic

► Show Spoiler

3) Smell:

a) The mod will automatically add smell ability to Player that has any night eye lesser power or waterbreathing constant effect

b) If you press "]" button you turn on smell. If you press "]" button again you turn off smell. The key can be customised in the Button.ini file - key variable. You can also turn on or off the ability by choosing appropriate power in magic menu and pressing the power button.

c) The ability shows direction and strenght of wind and detected NPCs/creatures. In exterior places scanning with smell takes some time.

d) If you hold the toggle button and then release it you activate/deactivate passive smell. It notifies you about random detected target every few sec. You can turn it on or off by using appropriate lesser power. You can tweak SixthSenseInterval (value 0-100) variable in the ring menu or via ini file to determine the frequency of the ability.

e) The ability depends on the direction and strength of wind.

f) The direction of the wind determines whether you can detect current actor while being in exterior world space. For example when the wind is north it means that it blows from the north and that you can detect actors north of you. When no wind or in interior you can detect a target no matter its position.

g) The strength of wind affects how distant targets player can smell. The stronger the father. Maxdistance in interior = 4000.0. Maxdistance in exterior = 4000+4000+WindStrength.GetValue()*16000.0. This means that potentially the greatest range is 24000, but in practice unless you change the number of grids and cells being loaded the maximum number is 16000. Be warned changing the number of grids and cells in "Skyrim.ini" file can cause crashes and other problems.

h) The strength also affects the angle of detection (both vertical and horizontal). You can detect only targets that lie in the direction of wind. Max angle = 45 - (22*wind speed).

i) The smell provides you with information about target's name (only if target is unique and you have learned its scent), race, sex, condition (whether its dead or alive) and distance (in percent - current distance / current max distance of smell). Smell detect if current NPC is a vampire. You can learn scents of unique actors by approaching them and aiming at them while passive smell is turned on but only if you can sense them. You can sense most kind of actors. You cannot sense ghosts, fishes or magic anomalies. You cannot use smell while swimming. You cannot smell actors that are swimming.

j) After the smell sequance you have the option to track a specific actor detected by the smell (added visual effect on tracked actor that shows you only a direction and not the actor itself which I think is more realistic). If you activate the smell again or you are unable to track it anymore for some time you turn off the smell track mode (the visual effect is removed immediatelly). While in smell tracking mode passive smell provides you with information only about tracked actor if you can sense it (if not information is provided as default). If you initiate smell while passive smell is active and you sensed some actor you are given an option to scan the surrounding area (classic smell ability) or skip that and immediately start to track the recently detected actor (usfull when in exterior places since scanning with smell takes some time there).

k) Some actors can smell you as well. This will set them into alert state for some time. While approaching them take into consideration the direction and strength of wind. Beware animals, argonians, khajjits, vampires and werewolves. They cannot detect you when you are swimming. If you enter a new interior world space you are initially almost impossible to detect, but it gradually changes with time when your scent spreads in new place. In other word at the beginning you have a natural advantage. It doesnt matter whether you have a smell ability. Even if you dont they can still sense you. You can turn on or off detection by some actors of the player by tweaking ActorSmellDetectionTurnedOn variable in the ring setup or ini file.

l) Be advised! The detection of player by actors requires a script to be run on any loaded actor and can potentially affect the speed of the game.

I recall something also being said for a mechanic Splinter Cell added, but I am not sure the mechanic I recall was related to smell.

[Xenich]

The only ones I am aware of are FF11 and the prototype for Monster Hunter World (the T-rex would begin following the player's scent/path taken after losing track of him visually).

Pantheon (MMO) implemented smell as a mechanic for mob detection.

[J1M]

FFXI has enemies that can track by smell.

[gerey]

Not aware of any RPGs per se, but I know Half-Life 1 did have a smell mechanic, which was basically a variant of the sound propagation system, Discword Noir had smells as "items" you could use to solve the puzzles, and more recently Gloomwood gives you the option to lure the canine enemies via smell.

[Norfleet]

You smell a wumpus.

[Acrux]

Drakensang: Rotten stink is a negative Status Effect lowering Charisma. It can only be removed with Elven Bath Herbs.

Some TTRPGs have perception-based abilities that would include smell.

[1998]

KCD2, I mean fr

https://www.pcgamer.com/games/rpg/ugh-k ... arby-npcs/

[Roderick]