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  • World of Warcraft
  • 316,496 Monthly Downloads
  • Supports: 5.4.8
  • 9,452,574 Total Downloads
  • Updated 07/13/2014
  • Created 09/13/2009
  • 5,853 Favorites
  • Project Site
  • Comments
  • Release Type: Release
  • License: GNU General Public License version 3 (GPLv3)
  • Newest File:
Support development! **

About _NPCScan.Overlay

NPCScan.Overlay is an addition to _NPCScan that adds map overlays for rare mob patrols. When you search for a rare in _NPCScan, _NPCScan.Overlay will show where it patrols until you find it. It works similarly to keithgabryelski's Rare Spawn Overlay's , but supports the minimap and has a much smaller download size, along with a few new features.

Special thanks to Rare Spawn Overlay's patrol paths and Routes minimap drawing code for inspiration!

Note: _NPCScan.Overlay can integrate with _NPCScan if you have installed it, but make sure to keep both up to date if you do use both!

If you have a question check the FAQ, or a problem create a ticket


World Map

In addition to drawing paths on the World Map, _NPCScan.Overlay adds a key to a corner of the window with each rare's name. It only appears in zones that have rare maps, like Netherstorm as seen in the screenshot. Hovering over a mob's name in the key will cause the mob's path on the map to start flashing. If you need to read something under the key, it can be toggled by Clicking on the Key Toggle button on the map. The key can be repositioned by just moving your mouse over top of it while holding the shift key and the key will jump to a different corner.

Most map mods like Atlas will inherit the key and overlays from this module. Even Carbonite's map display will show them.

Battlefield Minimap

The small “Battlefield Minimap” (AKA the “Zone Map”) also shows mob paths.


All shapes and sizes of minimaps are supported. Rotating minimaps work fine as well.

One feature not shown in the screenshot is a thinner 100 yard range ring around your character. It helps you gauge _NPCScan's detection range, so you can sweep through zones more effectively. This option can be found in the Minimap subsection of the options panel, detailed below.


_NPCScan.Overlay's options can be found under _NPCScan's main options menu, under _NPCScan > Overlay or as its own entry of _NPCScan.Overlay if _NPCScan isn't installed. This panel can be opened with the “/npcscanoverlay slash command, or “/overlay” for short.

The “Always show all paths” checkbox at the top of the pane overrides the instructions of NPC tracking mods like _NPCScan to hide unused paths, and always displays all known paths instead.

The rest of the configuration pane lists each map display's options. You can enable/disable each map from here, as well as configure individual settings for them.

Each map display can have its overall transparency set independently with the “Alpha” slider, so that it doesn't obscure the maps themselves.

James D. Callahan III <>
2014-07-13 21:33:17 -0500


James D. Callahan III:
    - Fixed math upvalue.
    - Preliminary (and extremely painful) cleanup and refactoring.
    - typo


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  • #948

    If you are trying to acces it via the broker button, it is <Shift> + Middle click to open the options menu.  It is also accessable via the standard Blizzard options UI or by typing '/overlay' in the chat window.

    From there you can set the option to show the paths after they have been found.

  • #946

    Just pushed the update.  Some notible changes is that there is now a seperate icon for toggleing the Mob Key, in additon there are now visual indicators on the icons to show if they are active or hidden.  Also a new keybinding to toggle the minimap path overlay and an option to set the Key the classic move on mouseover have been added per user requests.

  • #944

    I have NO Overlay icon on my world map -- I have checked settings and it gives me "Battlefied-Minimap Popout" and "Minimap" with the enable button checked, as well as the OmegaMap AddOn grayed out. However, there is no World Map option to enable. I can see the little map in the corner (the Battlefield minimap), but when I open the World Map, there are no routes displayed. Please help! :(

  • #945

    It sounds like it is missing some of the configuration files.  I'd reccomend deleting the addon and reinstalling a clean copy.

  • #941

    Apparently, I'm not the only one having this, but since the last patch appeared, the NPC's names disappeared. Which means I have the paths, but I don't know whose path it is :/


    Any idea of what's happening ? Perhaps a problem with the CVars regulation ?

  • #942

    I just checked and the name list is still showing for me.  Have you tried shift-Left Clicking on the NPCScan map icon to see if it somehow got toggled off?  Are you using the default world map or are you using a map addon?

  • #943

    Thank you, my friend ! Actually, I did it before the post, but apparently it did not work properly. And now, I tried again, and it works ! :] So thank you ! o/

  • #940

    what happened to the mini map names of npcs?

  • #936

    Is there a way to adjust the size of the map key that shows the names of the rares? It's too small for me to be able to read them. On my 24" widescreen at 1980x1080 its really tiny.


  • #937

    I think you can do it by the ingame for the ui

  • #950

    Unfortunatly there is no way to manualy adjust the size.  The list's scale is based on the size of the map it is being displayed on, so it does not end up covering a large portion of the map.

  • #949

    No, there is no option to resize the Key list. I've looked for one after every update. The Key for the full size world map isn't too bad but the small square one is TINY.


  • #932

    What does the green checkmarks on the list of names of the rares mean?


  • #933

    The red "X" is displayed when that mob has been found in the cache by the NPCScan addon.

    The green "√" (Check mark) is displayed for achievement mobs which the achievement API marks as complete.  This could be per character or account wide depending on how the achievement API tracks it.

  • #929

    I keep having an issue where the box showing the names of rares stops displaying their names. Anyone know how to fix?

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