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  • World of Warcraft
  • 507,365 Monthly Downloads
  • Supports: 5.4.8
  • 20,511,702 Total Downloads
  • Updated 08/25/2014
  • Created 06/06/2009
  • 9,635 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 76 of 150 Next Last
  • #1610

    Hi really love this addon but is it possible to add all the rares to this and seperate them by zones they r found in instead of the continents and let u turn on and off the ones u want? will gladly put $20 for this to happen lol


  • #1609

    hi, is it possible to enlarge the scan-radius?

  • #1604

    I keep having random rares I have NEVER encountered ending up in my cache. I try to delete my cache so I could see them on my map (I have NPCSCAN overlay) but they just keep reappearing.

  • #1608

    I'm also having a similar problem. Not only do they still appear as cached on the list after the folder is deleted, the route and name for some of them don't even show up on my map.

  • #1603

    I just tried this mod yesterday for the first time, and now my Hunter is the proud owner of Sambas! It worked perfectly! Thanks!

  • #1607

    Can't you fix this so that I don't have to log OUT every time I encounter a rare in other than it's original zone?  Code it so that it effectively ignores the mob if it's in Dal rather than filling the log and/or telling us to go to the zone and look for it - the fact is, most of these are heavily camped and the entire POINT of the addon is to be able to find them... I can't stay camped in a zone for days on end - and avoid Dalaran or routinely go and clear my cache - even the "advanced" method of deleting the specific file is a pain to have to do SEVERAL times in a gaming session or ANYTIME I run across a hunter friend or ffs, run with a hunter friend using the pet I'm trying to tame.

    Clearing cache a dozen times or more every play session isn't viable.

    Coding it so that this isn't necessary is the way to do it... or have I misunderstood?  You said the addon would ignore rares in the "wrong" place but then said to clear cache and go to the zones where they are supposed to be... why?   If we could find them on the first pass through those zones, we wouldn't need the addon.

    Please explain.


    Also, is this targeted ONLY at rare mobs for achievements?  What about exotics that aren't necessarily rare or are elite but not rare or are just plain hard to find and desirable hunter pets?


    I have to manually enter the mob's code?  Why wouldn't the addon have any pets a hunter might want to tame?  I'd glady contribute money if the addon worked as most of us would want or need it to.



  • #1600

    Is there any way to compile all rare mobs into this addon? Even the lower level ones because at the least they will drop an item worth 1g on the AH or at lease a disenchant item. I have been adding them as I come across them but it is tedious and there is no way to get the info from 1 character to another other than inputing them again.

  • #1594

    this add on is not working for me i've deleted curse and all my add ons off my computer and re downloaded them can anyone help me thanks

  • #1595

    Can you give any details? "Not working for me" could be any number of things.

  • #1605

    i turned on the thing for the errors to show up and like 20 things came up i've also try to turn on npc scan by itself it still isnt working:(

  • #1602

    Good job adding the details as to what's going on. I just downloaded NPCScan yesterday for the first time, so I'm new to the addon, but it worked for me. Perhaps the project manager will be able to make some suggestions that may help you, now that you've explained what's happening.

    You might want to make sure that you have "Display Lua Errors" turned on in the Interface-Help tab, in case there's something that's keeping it from loading. You could also try disabling all of your other addons temporarily and see if one of them is conflicting with this one. If NPCScan runs with your other addons disabled, then you could try turning them back on one at a time to see which one has a conflict with NPCScan.

  • #1598

    ok when i log into wow u know u got the tab that says add ons ok well its on that list and i checked it and said load out of date stuff ok when i go in world its no where to be found i go to inferface etc its not on that list i've deleted it cleaned the cache re down load and its still not working

  • #1591

    Hey guys, I'm just thinking?

    Would'nt it be better if you had a script that could automaticly run between the spawn points, when you AFK or sleeping? I'm farming Poseidus atm. But out of the 4(5) spawn points it reduced my chance to catch it with 75%. And if it's not possible because of terms, why can we then have anti-AFK programs, marcos and so on without getting banned? Moving from the diffrent spawn points would'nt disturb anyone, unless they are farming the same mount? And there has to be some challenge, but im just saying it would be alot easier.


    Image eksample:

  • #1593

    That would be automated gameplay, and as such isn't allowed. A macro doesn't play the game for you-- having a bot that moved your character from one location to another would be "playing the game" for you. It would be a bannable offense IMO.

  • #1590

    Terrorpene just disappeared from NPCScan and NPCScan overlay over night.. Is there something I missed? I've cleared cache, relogged, exit/enter game, different toons etc, it's just gone.

    Deleting an NPC is one thing, but when it disappears from the Overlay as well I'm thinking this is done on the Author end :o

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