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  • World of Warcraft
  • 309,689 Monthly Downloads
  • Supports: 5.4.8
  • 20,156,854 Total Downloads
  • Updated 07/10/2014
  • Created 06/06/2009
  • 9,587 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 102 of 149 Next Last
  • #1205
    There are a couple other reasons why mobs might be grayed out other than the cache. One reason is that they're on a different continent, and they aren't being tracked at that moment. For example, if you're on Kalimdor and you check the Northrend mobs tab, they will all appear grayed out until you go to Northrend. One other possibility is if you already have achievement credit for a mob and the "Search for completed Achievement NPCs" option is disabled, those completed mobs will appear grayed out.
  • #1201
    There is a major feature we could all use in this addon: the time logging of when an NPC is found. This would allow players to determine spawn/respawn timers for most of the rare spawns we are all searching. Not sure if it could output to a file but that would be great!
  • #1200
    I was out in storm peaks searching for the Time Lost Proto Drake the other rare drake out there came up but the picture it shows was not showing correctly it was not sized up correctly
  • #1199
    Here's an applescript to delete creaturecache.wdb. The last line is to launch WoW and is optional. Save it as an application for easy use.

    tell application "Finder"
    repeat with l in folder "Cache:WDB" of folder of application file id "com.blizzard.worldofwarcraft"
    if exists item "creaturecache.wdb" of l then
    do shell script "rm " & (quoted form of POSIX path of (item "creaturecache.wdb" of l as alias))
    end if
    end repeat
    end tell
    tell application "World of Warcraft" to run
  • #1196
    Since Terrorpene is now searched for by default and also is tamable, the following should be added to the _NPCScan.TamableIDs.lua:

    [ 50058 ] = 606; -- "Terrorpene" from Mount Hyjal
  • #1197
    He's already there at the top of the list, but his name is missing. WowHead has no record of him yet, so my list-making program left his name blank. Ghostcrawler's entry is nameless too.
  • #1198
    Forgot to mention, the names are just comments in that file. _NPCScan will work fine without them; It just needs the two numbers.
  • #1191
    Do you need to clear the cache each time you find a Mysterious Camel Figurine?
  • #1193
    There's a theory that the "dud" camels are separate NPCs from the real ones that teleport you, so you might try leaving the dud camel cached and continue searching for the real one.
  • #1190
    Got an alarm that Rare Lady LaLa was around in Vashyr but could not get the minimap overlay or world map overlay to come on?? Says it was enabled but no shading on wither map appeared. Do I need to reinstall...I am on most recent version.

  • #1192
    Those will appear once I've finished updating _NPCScan.Overlay. I should have it finished pretty soon.
  • #1186
    Thanks for all the new rares in the custom tab. One problem though with one of the Mysterious Camel Figurines. There are only two IDs, 50409 and 50410. 50411 does not exist. The working theory, which has been proven through experience so far, is that 50409 is the teleporting figurine, and 50410 is the "dud" that gives the 25g vendor junk. 50411 does exist though, but as the item ID for Scourgeborne Waraxe, a 1H axe that drops off normal Gunship in ICC.
  • #1187
    I personally got my camel from 50410, and know of people that got it from a 50409 (I only had 50410 in my npcscan list.)

    Also item id's are separate from npc id's, they're on different tables. So one of each can exist. Npc 50410 = Mysterious Camel Figurine (2 of 2), item 50410 = Durrin's Archaeological Findings. :)
  • #1188
    I'm aware that npc and item ID are different. I was just pointing out that npc 50411 does not exist, but item 50411 does.
  • #1189
    I hadn't heard of 50411 until MMO-Champion mentioned it as a possible third spawn, but their database does include it. Keep in mind that WowHead is still missing information for a few rares like Ghostcrawler and Terrorpene, so a missing third camel might just be extraordinarily rare.

    I'll remove it and assume it was a fluke if WowHead doesn't pick it up eventually.
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