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  • World of Warcraft
  • 199,971 Monthly Downloads
  • Supports: 6.2.3
  • 33,612,588 Total Downloads
  • Updated 12/14/2015
  • Created 06/06/2009
  • 11,466 Favorites
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  • Release Type: Release
  • License: GNU General Public License version 3 (GPLv3)
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Support development! **

About _NPCScan

_NPCScan helps you find rare mobs through the use of dynamic target macros, mouse over alerts and for Vignette mobs proximity. Once a mob is found by one of these methods an on screen alert is displayed, in addition to an audio alert.

_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, nameplate, 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.

V6.x Changes
  • Cache Scanning Removed - Due to changes in the way WoW cache mobs, NPCScan can no longer auto alert when mobs are nearby like it use to.
  • Dynamic TargetExact Macro Keybind - NPCScan now has a keybind you can set that will try to /exacttarget tracked mobs. This macro will dynamically update based on the zone you are in and which mobs are being tracked.
  • Updated Vignette Alerts - Vignette Alerts are now more reliable and show the actual mob when detected the majority of time.

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.


Dynamic Target Keybind

NPCScan now includes a keybinding that will trigger a stored dynamic target macro. Each time it is pressed, the keybind will trigger a /targetexact <mob name> for every tracked mobs in the current zone you are in, in addition to any custom added mobs. This macro will be auto updated based on the zone you are currently in. To access this feature, just set a keybind under the Key Bindings->Addons->_NPCScan->Dynamic Target Macro section. Note: To search via the keybind, you will need to continuously push the bind. Pushing it once will only trigger it once, it does not auto scan like it did Pre WoD.


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.


If you have nameplates turned on, NPCScan now has the ability to trigger alerts off them. This method is not completely reliable as it has to rely on name comparison, so if mob name that NPCScan has does not match it will not trigger an alert. Also the range is limited as you need to get close enough to a mob to have the game display its name plate.

Addons that modify nameplates may interfere with this.

“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.&nbsp; 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 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.&nbsp; That page's URL will look like

32500 is Dirkee's NPC ID.

SLOKnightfall <>
2015-12-14 10:17:57 -0800

Tagging fix


    - Fix for error on login when trying to save old setting when new profile table has not been initialized.


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  • #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?

  • #1712

    It means your character is not on the same continent.

  • #1703

    I've had this really weird thing happen to me twice now on two different characters. It's where some total stranger apparently finds one of the rares on my list, and even if I'm three zones away, it goes off for me too. The most recent example of this is when I was on my priest in Grizzly Hills questing, and npcscan went off for the giant rare in Icecrown. I went over there on my main (since I needed him) and sure enough, someone was killing him. How the hell does that work?

  • #1729

    Some mobs can be targetable from huge distances. Putridus the Ancient and Mobus are two that pop up in odd places because you can literally target from that far away. I've had Mobus (the rare whale boss in Vash'jir) pop while I was in Twilight Highlands.


  • #1708

    putridus the ancient I believe - has a massive footprint.

  • #1702

    you know some NPCs are auto checked off the list via ingame information not just the cache file :P

    Also side note looks like WoWLauncherPLUS has a function to auto delete the creature cache file before you start WoW.  Just as a friendly heads up. 

    I would check the options for NPC scan to see if said mobs are one of the ones that auto ignore based on set ingame information.

  • #1714

    Or you can just write your own batch file, and use to start WoW, e.g.:

    @del "C:\Program Files (x86)\World of Warcraft\Cache\WDB\enUS\creaturecache.wdb"
    @del "C:\Program Files (x86)\World of Warcraft\Cache\WDB\enUS\npccache.wdb"
    @start C:\"Program Files (x86)"\"World of Warcraft"\Launcher.exe

    Of course, the actual location of these files will vary depending on where you installed and what OS you're using.

  • #1700

    So, myself and a friend of mine are both having this exact same problem with NPC Scan.

    Neither of us can get already cached NPCs to show up on the list again after they've been found...and yes, we've done the whole emptying the cache thing. I've even uninstalled and reinstalled the addon to no avail.

    The NPC are just gone. My friend recently got a hunter to 85 and he started the quest of finding rare pets and I was trying to help him, unfortunately I just can't get any of the rares which I found before on my own hunter, to show up on the list again. All the NPCs from Hyjal and the Molten Front are just gone, he had NPC Scan go off a few times from finding already tamed NPCs in Orgrimmar and now he can't get them to show up again either, despite clearing the cache.

    These missing NPCs aren't even on the list with a red x by their name letting you know they're already cached, nor do they come up on the chat box print out when you log in that lets you know what NPCs are cached.

    I went to the extent of finding all the NPCs on WoWHead and re-adding them myself, hoping that would help and it did momentarily when I re-added. But the second some of them were found as already tamed mobs in the city (and a couple got cached because I already had them when logging into my Hunter)...they're gone and won't come back again, despite clearing the cache.

    Is anyone else having this same problem we are and if so do they know what could be wrong or how to fix it? I love this addon and it was incredibly helpful for finding all the rares I wanted on my hunter, but's just stopped working like it once did.

    Any advice would be greatly appreciated. Thanks in advance.

  • #1710

    Your machine may have another cache you need to delete. See:

  • #1701

    I'm also having the same problem as Oxygenation. I've cleared the Cache, uninstalled the program and reinstalled twice. I tried removing them from the /npcscan menu and commands. Nothing worked. I just want my Frostbitten achievement. :<

  • #1699

    On my Curse, it states that its 'unable to manage' do I fix this?

  • #1696

    Will it work even if i am marked as AWAY ?

  • #1698

    yes It will, I know because it happened for me, an npc in cataclysm spawned while I was away in sw.

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