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  • World of Warcraft
  • 626,750 Monthly Downloads
  • Supports: 5.4.8
  • 20,803,738 Total Downloads
  • Updated 09/21/2014
  • Created 06/06/2009
  • 9,691 Favorites
  • Project Site
  • Comments
  • Release Type: Release
  • License: GNU General Public License version 3 (GPLv3)
  • Newest File:
Support development! **

About _NPCScan

_NPCScan & Warlords

Due to changes in how the game caches mobs in WoD, it is looking like _NPCScan will no longer be able to auto detect non-Vignette mobs. Due to this the only way to find pre-MoP rares via _NPCScan will be via mouse over or the new dynamic target macro keybind being added. The new keybind will trigger a /targetexact …” macro that updates with tracked mobs based on the zone you are currently in. Vignette mobs will still automatically trigger an alert when the mob gets in range, and should work more reliably due to updates to the Vignette API.

_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 <>
2014-09-21 01:07:39 -0500


James D. Callahan III:
    - Added global Show Alerts As Toast option; displays the alert text as a persistent (and dismissible) toast rather than printing it to the chat log. Defaults to enabled.


First Previous Page 70 of 151 Next Last
  • #1722

    I dont understand i cant get _NPCScan :( help plzz

    Last edited by farendinerdame on 4/4/2012 1:52:02 PM
  • #1721

    Is it possible to have a time and date stamp when a creature is found?  


    For instance, searching for TLPD or Aeonnaxand go away or go to sleep with the speakers on and then wake up later or return and see the scanner found the mob but it's already taken and gone.  With a time stamp we can set up a rough estimate when the mob potentially will respawn.

    Doesn't have to be permanent considering we clear the creature cache for the next time.

  • #1727

    For this, any chat addon with timestamps enabled works great.

  • #1720

    I added a long list of Kalimdor and Eastern Kingdoms rares last night and went through the zones a couple of times finding about 30-35 of the rares in the 50-60 range (epicness!), however, logging on today, the list of rares to track is back to the custom set one with only tbc, wrath and cata rares?

    Why doesn't it save the list from logoff to logon?

  • #1719

    Really love this Addon! ;-) Thanks!!!! One question: How far away do I have to be from the rare mob? Do I have to fly to the place? Or just be near it? Thx ;-)

  • #1718

    Does this know the difference between treasure rares and hunter-pet rares?

  • #1734

    yes it knows the difference. When you put in the NPC ID #, Area, and NPC name, it will tell you if its a tammable pet or not after you add that NPC into the cache.

  • #1717

    How about putting in a way to right click the mobs potrait in-game, and add to the searh list?

  • #1716

    I've ben farming the rares in blasted lands, but for some reason i cant add them into the npcscan. I enter their id, name and continent, and cant seem to put them in the scanner.

  • #1715
    3d model

    Hi im having problems with the 3d images that popup twice now i have seen aeonaxx rare and i dont get a 3d model of him, just his name ?

    any idea thanks

  • #1711

    Custom NPCs:

    • Instructions say that "World" is an optional world name to limit searching to and can be a continent name or instance name. This is not true! If you enter anything other than what's in the dropdown box, the addon will not locate your NPC. Thus, instead of putting "Deadmines" in the world field, put it as part of the Name (which truly is optional), e.g. "Deadmines NPCname"
    • It would be cool if you could make use of the zone field, but I've found no way to do so, even by entering data directly into the stored lua file. Anyone know how to do this?
  • #1709

    It's a nice idea but it only detects some mobs once then it never see them again. like the spirit beasts, none of them shows up again on any of my toons.

  • #1728

    After you see a rare, it gets cached. Delete your cache to reset it and they will pop for you again. Hence why there are notifications of "The following mobs are cached" being displayed when you log in/enter continents with cached rares.

  • #1713

    Clear the cache. Read the instructions on how to use the addon.

  • #1704

    hi I have a question what does it mean if a name is Gray in the NPCscan folder?

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