Get an Epic Experience with Premium


Achievements Login to Add Favorites
  • World of Warcraft
  • 660,373 Monthly Downloads
  • Supports: 5.4.8
  • 20,846,890 Total Downloads
  • Updated 09/21/2014
  • Created 06/06/2009
  • 9,692 Favorites
  • Project Site
  • Comments
  • Release Type: Release
  • License: GNU General Public License version 3 (GPLv3)
  • Newest File:
Support development! **

About _NPCScan

_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 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.

_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 <>
2014-09-21 01:07:39 -0500


James D. Callahan III:
    - Added global Show Alerts As Toast option; displays the alert text as a persistent (and dismissible) toast rather than printing it to the chat log. Defaults to enabled.


First Previous Page 5 of 151 Next Last
  • #2840

    Check in the settings that the "World" setting in the list is displaying Kalimdor.  Others have reported similar issues and the problem that the "World" was set to something else or was in all caps.  If the world is not set correctlth then the addon won't search for it, as it thinks the mob is not in the current continent.  If the mob name in the settings list is bright yellow then it should be monotoring for the mob being added to the game cache.

  • #2841

    This makes sense. Thanks for sharing. I am still (out of paranoia mostly) just disabling all addons other than NPC Scan and searching for it that way. I checked the world and it is "Kalimdor" so it is all good to go. Thanks for clearing this up!

  • #2836

    Is there any way to turn on map markers for vignette spawns?

  • #2837

    I'm not sure what map markers you are talking about.   Vignette mobs have a default game UI (Skull icon) that shows in the minimap that NPCScan has not controll over.  If you are looking for spawn and route's then use NPCScan.Overlay, which adds that to the map for the majority of the rare mobs in the game.

  • #2831

    Great addon, only problem is that i downloaded to find a specific tameable rare beast and it isnt on the list. Loque'nahak. I'll try to get it by spamming a macro but just letting you know.


  • #2853

    Loquenalak is on the frostbitten list IIRC because he is part of the acheivement


  • #2832

    Loque'nahak is tracked under the "Frostbitten" Achievement tab.  Also you can add custom mobs to tbe tracked by folowing the instruction in the FAQ

  • #2833

    got it, thanks a lot!

  • #2825
    Cache Reminder

    Everytime I log into my toons or do a /reload, the cache reminder is always on. I try to disable it, but everytime I log in/out or change toons, it always turns itself back on for some reason.

    Last edited by Zombetta on 6/18/2014 3:12:46 PM
  • #2826

    Thanks for the heads up.  The issue should be fixed in the next build.

    Last edited by SLOKnightfall on 6/18/2014 6:59:26 PM
  • #2829

    Happens with the lastest version available in the curse client. I switch back to the version until this version is fixed. Its just too annoying.

    Last edited by Zasz on 6/19/2014 3:44:46 PM
  • #2822

    While I was flying around in Nagrand I saw Bro'Gaz the Clanless.  I had deleted Creaturecache.wdb minutes earlier before I logged in, but it never alarmed nor notifying me about this rare's presence.  As I needed this rare for the Bloody Rare ach I killed him.
    This puzzled me so I logged out, deleted the file again and logged in.  Normally NPCscan will alarm even if the rare is dead.  But it never did.

    Is this a known bug and can I fix this manually?

  • #2823

    I believe that it is a bug.  He's listed in the NPCScan code as a achievement mob, but is not actually part of the Bloody Rare achievement.  This is causing him not actually be tracked because it would not be listed in the standard rare list due to being flaged as an achievement mob, and not in the Bloody Rare list as he is not part of the achievement kill list.  I'll need to verify once I get a chance to log in and visually inspect the lists in game.

  • #2830

    Today i finally found Coilfang Emissary (part of the Bloody Rare ach) in Zangarmarsh.  I was standing in front of the rare, but NPCscan never alarmed until I marked it.

    I really love the addon.  But I've decided to also use macros for the specific rare ( /tar [name of rare] ) for spamming purposes as it seems its not as reliable as I thought it was. :)

  • #2824


    Oops.  Youre right about the Bloody Rare ach.  Yesterday I camped Skoll in Storm Peaks until I realized this rare also wasnt a part of the Frostbitten ach.  Thanks for the heads up. :)

  • To post a comment, please login or register a new account.
Login to Curse

Don't have an account? Create One.

Get an epic experience with Curse Premium
  • Faster addon downloads
  • Premium-Only Beta Giveaways
  • Ad-Free Curse experience
  • Premium Curse Client
  • and many More Features
  • Learn More »

Absolute Lojack Giveaway!