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  • World of Warcraft
  • 535,980 Monthly Downloads
  • Supports: 5.4.8
  • 19,977,644 Total Downloads
  • Updated 07/10/2014
  • Created 06/06/2009
  • 9,528 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
  • #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).
  • #1494
    I agree, but you have to ask Blizzard for that feature. So far Blizzard cache files are readonly and only fixed outside the game. Only the instructions mentioned in the author's description above work regarding, "Clearing Your Cache". Ever since npcscan came out years ago we could not change this.
  • #1495
    Yes, clearing the cashe does the trick but resets everything.
    Oh well.
  • #1492
    -- STOP --

    What is it with people and all the nagging about NPC_Scan not working ?
    It is working perfectly, maybe it is a other addon there is blocking NPC_Scan, maybe is it you there have no ide how to delete creaturecache.wdb, maybe it is somthing else.

    Stop all the post about the addon is not working.

    Maybe try to read what other people have been writing.

    Deleting the creaturecache.wdb in a safe way

    Adding the new firelands rare

    Finding "Mysterious Camel Figurine"
  • #1499
    " dernir said
    Tue Jun 28 2011 19:09:21 GMT+0000 (Greenwich Standard Time) (2 weeks ago)
    Error report ! A few minutes ago I got my Time-lost Proto-Drake and _npcscan did NOT go off ! One of the rarest mobs ingame & the only mod designed to catch them did not go off tells me that there's something terribly wrong with it. Please have a look at this. "
    Quoted from 2 weeks ago.

    Does this mean that every1 who already has TLPD and comes close to me ingame result in wow caching the mount & the mob ?
    I would think not, but im not learned in the .lua ways.

    I have not seen the TLPD recently, and it cannot be cached from seeing the mob itself in Storm peaks as I just recently Re-Installed wow again.

    As far as other mods are concerned I had none other installed at the time i found TLPD as I had just Re-Installed wow from scratch.

    What I find odd tho is that in the past _npc scan frequently shouted out rare mobs here & there around the wrold on my travels and served me well, but recently I have not had a single alert.

    So the fact stil remains, something must be wrong with _npcscan as it did not go off when TLPD flew past me.
    Os & WoW freshly installed & there was no other Mod installed at the time.

    Please have a serious look at this as _NPCscan is A gread mod that any fellow WoW players should not miss.

    great work in the past saiket. keep it up ! figure this out for us please :D
  • #1491
    I hope that there will be a future version that you can easily remove individual NPCs that were found but you were not able to kill for some they were already dead, or you couldn't find them because there's no direction indicated from your present position where they are...that is especially problematic in high dense areas...
  • #1486
    I've been having a problem wint NPCSCAN since before the patch. Somtimes while in Uldum it'll pick up "mysterious camel figurine". But theres nothing to target. I even have made a /tar macro and can't pick up anything that way either. Is this a known bug?
  • #1487
    Actually, Blizz changed it so they cannot be targeted; you have to fly down and search for it, so targeting macros won't work either. NPCScan will go off if it's in the area, but the search is up to you.
  • #1485
    why cant i get Npcscan to pick up any rares in firelands
  • #1488
    the firelands (molten front) rares are not currently in the DB by default; you need to add them manually. the seven rares (and their IDs) that i'm aware of are:

    50815 Skarr
    50959 Karkin
    54321 Solix
    54322 Deth'tilac
    54323 Kirix
    54324 Skitterflame
    54338 Anthriss

    When adding them, if you click the dropdown, you can select "Molten Front" as the zone :)
  • #1483
    I can't seem to delete my cache. I'm not in a town and it's not npcs that you can tame, 'cause none of them are being cleared. I have tried tons of times and it just won't delete
  • #1484
    First of all, in order to delete your creaturecache you have to shut down WoW entirely, as in, log out, press escape a few times to kill the program. Check your processes in your task manager to be sure no launcher.exe or wow.exe are running. Then browse your hard drive to your world of warcraft install, and find your creaturecache.wdb(it should be in cache/wdb/enUS/creaturecache.wdb - replace enUS with whatever your localized version of the game client is). If this is NOT working, and you're on vista or windows 7, you may have an issue with the OS protecting certain files from being deleted. You may have to find out how to disable that, at least temporarily.
  • #1481

    how long will it take to add the new rar tamable spawns within the firelands/molten front?

    And: Is it possible when adding a new ID not only to set the world but also set the zone? Would be great. ;-)
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