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  • World of Warcraft
  • 551,490 Monthly Downloads
  • Supports: 5.4.8
  • 20,673,745 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 134 of 150 Next Last
  • #410
    I LOVE this addon, but is there a way to easily add in rares fro the old world, and not have to put them in one at a time?
  • #408
    Thanks for the help.
    The NPC is now on the list without a X but it havent written any location.

    like this Skoll --- 35345 (ID) --- Storm Peaks

    It also isnt shown in the litle box when i look at grizzly hills on my world map.

    Does this mean that i wont be told when it appears and if yes how do i fix it?
  • #409
    _NPCScan will still find it in Grizzly Hills. It has no map though, since I don't know where he patrols yet.
  • #406
    Just noticed something:

    When i look on the map for Grizzly Hills the name is not in the box...

    Can u help me to get him there?

    IF it helps ive downloaded the addon from WowMatrix today at about 22.00 (says its fully updated)

    If havent noticed its me who wrote the reply under this too (couldnt edit my post)
  • #405
    Hi first i wanna say thx so much for making this addon xD

    Ive just installed the newest version of the addon so i can get the new spirit beast arcturis.

    The npc is on the list but the text i gray and theres a {cross} before the text.

    Ive tried clearing the list and put in it myself but nothing changed.

    Can u tell me if that means NPCscan is unable to show when he spawns?
  • #407
    The red "X" means that you've already seen Arcturis (or a tamed pet version of him), so you'll need to clear your cache. See the section in the description titled "Clearing Your Cache" for detailed instructions.
  • #401
    Hey everyone. Has anyone else had any trouble getting the alert to sound? I've messed with every adjustment I can find for sound, and have not been able to get the alert to scream at me. The test succeeds, just no sound.

    Thanks for any ideas!!
  • #403
    Ok, there was one thing I didn't try before. I have two sound file options, "Xylo" and "Default". Mine was on Xylo. I switched to default and have sound now on the test.
  • #397
    also npcscan overlayer works
  • #396
    hi saiket i was wondering if npcscan works on wowbeez a private server because when you go to interface and test the alarm nothing sounds and when you type /npcscan nothing come up i was wandering if you could create an account on wowbeez and test the problem out im also live in the uk and got patch 3.2.2 i would love to have this patch as silverdragon works but yours pwns it thxs
  • #398
    I don't support private servers, but version should work with that older version of the game. You can download it from here:

    The same goes for _NPCScan.Overlay: Make sure you download a version that has "3.2.#.#" in the name (The last two numbers don't matter, just get the latest one).
  • #390
    Even with the updated, Arcturis still does not show up as a listed rare. Even tried an uninstall and reinstall of the program. No go.
  • #391
    And yes, I cleared my cache.
  • #392
    Make sure to restart WoW after installing, or else it will still think it's version
  • #393
    I did. Now when I open NPSscan (/npcscan) it shows Arcturis without a zone listed for him. Will it still automatically detect him and put up the notification? At least it shows up (partially) now.

    BTW... great addon! I have always loved this one. As well as the overlay.
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