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  • World of Warcraft
  • 296,544 Monthly Downloads
  • Supports: 5.4.8
  • 20,182,233 Total Downloads
  • Updated 07/10/2014
  • Created 06/06/2009
  • 9,594 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 <>
2014-07-10 21:36:39 -0500


    - -Fixed issue where rare mobs and beasts would not be enabled on login/reload
    - -Added delay timer to vignette alert
    - -Fix for tab tooltip enable/disable state not matching actual state
    - -Fix for options not saving off state
    - Fixed error on mouseover when in pet battles.  Ticket 63 Increased the delay before re-showing an alert when triggered by a mouseover to 5im (was 15 sec)
    - typo
    - Fix for Bro'Gaz the Clanless setting him as a non achievement mob
    - Added toggle option for mouseover alerts to option menu Moved some alert option from the search page to the alert page Added mouse over alert check if mob is alive before triggering alert
    - added code to trigger alert on mouseover updated debug code to update debug frame when new debug message is added Updated how saved variables are handled to help when adding new variable and to prevent saved variables from being reset when the addon does not load completely. cleaned up vignette code
    - Updated the  5 Madexx localizations to include the color of the spawn.


First Previous Page 82 of 149 Next Last
  • #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.
  • #1507
    Same here for Sambas :( This addon is great, but this cache system has got to go.
  • #1503
    questing in Kalimdor*
  • #1501
    loving this add, it really makes looking for a rare easier. now i have a question about the mysterious camel statues, any change you can put area's on the map where it might be? as far as i know it doesnt spwan all over Uldum, but im not 100% sure. an indication of where it might spwan would help a lot
  • #1498
    any chance you could add the 4 NPCs from Sethria's roost?

  • #1500
    U can actually add them manually to npcscan if u need them.
  • #1504
    already done that... but I'm asking for the addon to be improved.

    Just like a bugfix... I could fix it myself, but it's also useful to highlight the problem to the author
  • #1513
    Do these go into the Locale-enUS.lua or the _NPCScan.lua?
    Not quite sure of the right place to add them.
  • #1497
    I seem to be having an issue with my hunter. If I delete the creaturecache file all my toons except the hunter reset as described. For my hunter, however, several creatures are still cached. Is there another file that needs attention? Also, I have only seen NPCscan find one creature since I installed it many weeks ago and I have no idea why the creaturecache file is growing.
  • #1496
    I just instaled the addon and ihave a problerm i tried both of the ways that you describe to clear the chache one dosent work and with the link to the wow forums didnt help either cause i dont have a folder from wow there i really need some advice
  • #1493
    What's incredibly frustrating is running across the corpse of a rare NPC and having the alarm go off, then it's counted as being obtained and is no longer an actively searched for NPC.
    There should be a way to reset an individual NPC so it's searched for again.
    I would think that this ability would be a no brainer.

    If I've overlooked something, I would be happy to hear how it's done (without being belittled and spit on by vile, intellectually challenged children).
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