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  • World of Warcraft
  • 545,428 Monthly Downloads
  • Supports: 5.4.8
  • 20,667,683 Total Downloads
  • Updated 08/25/2014
  • Created 06/06/2009
  • 9,673 Favorites
  • Project Site
  • Comments
  • Release Type: Release
  • License: GNU General Public License version 3 (GPLv3)
  • Newest File:
Support development! **

About _NPCScan

_NPCScan tracks seldom-seen rare mobs by proximity alone, making the old “/targetexact …” macros obsolete. It has the same range as those targeting macros, but you won't have to mash any buttons. Just go about your business and let _NPCScan alert you when it finds something.

V5.x Changes
  • Due to changes in how the addon stores data, some settings might get reset when updating.
  • The default alert is suppressed while on flight paths by default. If a mob is found, the whisper sound effect will play and the mob & location will be placed in the chat log. You can turn this off from the settings.
  • _NPCScan now includes all rare mobs in the game.
  • The "One of Many", "Timeless Champion" & "Champions of Lei Shen" Achievements have been added.
  • Rare Mobs and Tameable Mobs have their own tabs now.
  • Custom mobs have been added for the Ghostly Pandaren Fisherman & Craftsman.
  • Individual mobs can be removed from their tabs to stop tracking them.

If you have a question check the FAQ, or a problem create a ticket

If you have a question/comment about _NPCScan.Overlay please post it in it's comment section.



NPCScan now tracks "vignettes". These are the little skulls appear on the minimap, that denote rare mobs. This is a beta feature and is disabled by default. Enabling this feature will alert you to a rare that's within minimap range, without any worries about having to clear your cache. When you get an alert you will be shown a target button similar to the standard mob alert, letting you know that a vignette mob was detected. Clicking on the target button will try and target the mob. Once a mob is targeted, the target button will update to reflect the mob found.

Known Issues: Currently there is no way to detect what mob the vignette represents. Because of this there is no way to filter out and ignore individual mobs. The vignette tracking will ignore achievement mobs groups that have their tracking turned of via unchecking their tab. Also the targeting button might have some issues if there are more than one vignette mobs in target range and may not work 100% of the time.

The Cache

This addon doesn't use nameplates or mouseover units to find rares. Instead, it checks your creature cache for the moment a rare mob is found. There is one catch to this technique however: Once a mob is “found”, _NPCScan won't be able to find it again until your cache is clearedf you find a rare mob's corpse—Dirkee for example—you would have to clear your cache before _NPCScan would find Dirkee again. Thankfully, clearing your cache is a safe and simple matter.

Clearing Your Cache

To clear your cache, follow these straightforward steps:

  1. Exit World of Warcraft
  2. Delete the “Cache” sub-directory inside your World of Warcraft folder.  For example on a standard Windows XP installation, you would delete the folder “C:\Program Files\World of Warcraft\Cache”.
  • Advanced users can delete “C:\Program Files\World of Warcraft\Cache\WDB\enUS\creaturecache.wdb” specifically to improve log-in times, where enUS is your language code.

Note: Windows Vista and Windows 7 users see this info if your cache isn't in the location above.

That's it. Log in after you've done that and you'd be able to find Dirkee a second time. It's completely safe because WoW will recreate your Cache folder after you log in again.

Cache Warning

If a rare mob is already cached when you log in, _NPCScan will print a warning message with the names of those mobs. If you see this message but still want to find the listed NPCs again, it's time to clear your cache by following the above procedure; Otherwise, you can quit searching for those mobs using the Search options window detailed below. You can suppress this log-in message using the main options pane, as well.

“Found” Alert

When a rare mob is found, _NPCScan alerts you by playing a loud and distinctive sound, making your screen pulse red, and displaying an animated Targeting Button. To get a feel for what this alert looks and sounds like, try the “Test Found Alert” button in the addon's main Interface Options panel. (See the Options section below.)

Targeting Button

When clicked, the targeting button tries to target the most-recently-found mob.  You can also bind a key to hit this button. If the default button position isn't to your liking, you can move it while holding your CTRL key.

Note: The button cannot be shown during combat. In the unlikely case that you do find a rare while fighting, the button will appear after you leave combat. You will still hear the alert however, and the name of the mob will appear in your chat log.


_NPCScan's main options window can be accessed from the Interface Options menu. This panel includes a “Test Found Alert” button, various ways to customize the alert sound, and an option to suppress cache warning messages on log-in. New sounds can be added to the alert sound dropdown menu by installing SharedMedia-type addons.

Search List

The list of mobs that _NPCScan searches for can be modified easily through the Interface Options panel, however it comes pre-configured with most rare Outlands and Northrend mobs.; To access the mob list, type “/npcscan”. Grayed out NPCs in a list aren't being searched for, either because they're cached or not needed for their achievement.

The first tab available lists Custom NPCs that you can enter or remove manually. NPCs that are already cached show a red “X” in the first column. You can add or remove Custom NPCs with the [+] and [-] buttons at the bottom right.

All other tabs control achievements like Bloody Rareand Frostbitten. These tabs show an additional column on the right with green check marks for completed achievement mobs. You may enable or disable tracking each achievement with its tab's checkbox.

To remove non custom mobs from a tab, click on the mob that you want to remove and then click on the "Remove" button. This will remove the selected mob from the current tab and add it to the Ignore List Tab. If you ever want to restore a Ignored Mob, select it from the "Ignore List" tab, click the "Remove" button and it should be added back to its original tab.

The “Search for completed Achievement NPCs” checkbox at the top left of the pane allows you to keep looking for mobs you no longer need for achievements.

Finding NPC IDs

A mob's NPC ID is its unique identification number, and it can be found on sites like WowHead or WowDB For example, search for the mob “Dirkee” on WowHead and go to the mob's page.  That page's URL will look like

32500 is Dirkee's NPC ID.


The only problem mobs for _NPCScan are tamable beasts & Battle Pets. Whenever you run across the tamed version, _NPCScan gets tricked into thinking that mob is nearby. In order to prevent those false positives, _NPCScan only shows alerts for tamable mobs in their original zones That is, if you spot Loque'nahak in Dalaran instead of Sholazar Basin where it usually patrols, _NPCScan would ignore it. When one of these tamable mob false-alarms happens, you'll see a message in your chat window explaining why it got ignored.

Since this makes tamable mobs are so difficult to track, I suggest you fly to the tamable mob's zone first, clear your cache, and then search for it.; Any time you pass through a populated area like Dalaran, you risk filling your cache with popular rare pets.

For Battle Pets there is no way for it to determine if a mob is a spawn or someone's pet. Many Battle Pet addons and just opening the Pet Journal will often cause Battle Pets to become cached.

James D. Callahan III <>
2014-08-25 19:12:48 -0500


James D. Callahan III:
    - Moved CacheWarnings option to global from per-character.
    - Cleanups
    - Removed commented-out code.


First Previous Page 82 of 150 Next Last
  • #1521
    According to the description, the addon SilverDragon works by the exact same mechanic as _NPCScan so you will still need to clear the cache after finding a rare in the wild or after encountering it as a tamed pet.

    From the description...
    "You can clear the mob cache by quitting WoW and deleting creaturecache.wdb from the Cache\WDB\enUS (or your actual locale) sub-directory in your WoW directory."
  • #1519
    Is there any way you can make the addon to auto clear cache, or ignore the tamed rares in their originated zones? It's really difficult to find rare untamed pets in that zone, with the addon spamming rare spawn found and it's not really the animal, then it gets cached (Molten Core, for example).

    I know nothing about addon making, and I don't know if it's possible or how difficult it'll be to update the addon that way.
  • #1518
    So, ryhooki... update this addon and clear your cache. Most if not all of the new tamables are on the list.. I know Sambas and Karoma are because I was just looking for them today, using the overlay. Terrorpene has been in the addon for awhile now.
  • #1515
    Some rare tamables are not listed on the add on and need to be added.
    Magria (
    Ban'thalos (
    Terrorpene (
    Anthriss ( (Molton Core)
    Ghostcrawler (
    Karoma (
    Sambas (
    Madexx (
    Deth'tilac ( (Molton Core)

    There are more listed here for Molton core:

    I just ran out of time to keep posting.

  • #1517
    i'd like those added, and all tamables should be moved to a new catagory since list grows and grows, a new tab, like frostbitten/medium rare, a 4th tab called "tamable" or "hunter pets". then custom can cleaned out a little :)
  • #1514
    very handy addon but it does have some problems.

    instead of manually having to clear the cache each time why cant it have an option to tick a box to continue searching for cached mobs like it does for bloody rare?

    also it does not seem to share info on all chars even on the same server same faction, it looks to me like i have to manually add npcs on each char which tbh is a pain in the ass when you have 10 chars.
  • #1516
    I have problem with this addon.
    Addon shows rares and works fine, but on achievement there is double amount of rarez which addons don't show on world map.
  • #1512
    As a testimonial to using _NPScan along with Silver Dragon This is how my week has been so far, beginning Sat 7/16: Tamed Ghostcrawler, killed 1 rare. Sunday, tamed Arcturis, killed 2 rares. Monday tamed King Krush, Skoll, Gondria, Aotona, killed 9 rares and completed Bloody Rare. Tuesday, Tamed Nuramoc, killed 2 rares, now 3 away from Frostbitten.

    A great addon.
  • #1511
    This mod has helped so much in finding rare pets. So far without even trying I've got Aeonaxx and the Mysterious Camel Figurine.

    And on a side-note. 4.2.0 caused the Mysterious Camel Figurine to "no longer be targetable" BUT just the other day NPCscan WAS able to still pick the Figurine up. It was just a little harder to find considering the mod (or you) can't raid mark it.
  • #1510
    I really love this addon. Thank you for all your hard work making it all that it is. I would really love to see support for the vanilla rare mobs. I realize that there is probably not a lot of demand for these and possibly some folks would even prefer not to have them included. Would it be possible to create another addon that would add this functionality? Maybe something like _NPCScan.Vanilla? I wouldn't ask you to spend you own time one something like this, but if it is possible I'd like to take a shot at it. I've never developed an addon before so I'm asking first before just jumping in and possibly wasting alot of time. :)

    Thanks again!
  • #1506
    Great add on ! Two suggestions, however: When an NPC is found, add its coordinates so they're easier to find or have them auto-target them.

    Secondly, get rid of the cache system. it's very annoying that I keep missing Sambas and have to keep clearing my cache which only works 1/2 the time. Or, at least add some in-game function where you can clear it from there.
  • #1508
    Impossible on #2 (or at least i'd be stunned if you could do it)
    here's why...

    NPCScan looks for changes to the cache... WoW doesn't load all the npcs/textures etc for the whole game, it just loads the ones it needs, so if you go to an area with a new NPC it will say "Ooh I've not seem him before... I need to load the texture into the cache, so it'll be quicker next time". NPC scan sees the cache change and says "OOOOH we're looking for that bloke"
    So the fundamental dependancy on the cache is unavoidable.

    Now as for deleting the cache in game, I'd be shocked if this were possible... what you're asking for is to allow an addon to make changes to your HDD. the ONLY things that a cache is allowed to change it to change saved variables... wow won't let addons looks anywhere else on the pc... this is to safeguard you from trojans, and safeguard them from cheats.
  • #1509
    oh another thing... you do realise that when the alert appears... if you click the alert then it auto targets that mob and then you'll be able to see on your minimap where the mob is located? I think this should address your points on #1
  • #1505
    Patch is great for my hunter :) but please could you add, for example, (H) next to the text for the hunter rare pet names so that I don't go chasing rares that will oneshot kill me! lol
  • #1502
    I don't know why but even after i delete my entire cache the addon still says that loque'nahak is cached even tho i haven't even been anywhere close to where you find him. I'm questing in laimdor and it still says he is cached when i delete the folder.
    Any help would be apprieciated.
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