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  • World of Warcraft
  • 262,456 Monthly Downloads
  • Supports: 5.4.8
  • 9,964,173 Total Downloads
  • Updated 08/16/2014
  • Created 09/13/2009
  • 5,955 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 <>
2014-08-16 23:48:12 -0500


    - -Fixed the toggle buttons from covering the Alpha 5 Carbonite default map buttons


First Previous Page 2 of 39 Next Last
  • #961

    The issue should be fixed in the alpha version and will be rolled into the next release.

  • #960

    It should not be overwriting the carbonite buttons, so I'll look into the issue and try to get it fixed.  When changes get made sometime bugs slip through, and they are not going to get fixed unless someone reports them.  You are the first person to report the issue which is why it hasn't been addressed yet.

  • #956

    I love this addon! I am able to see the overlay on all my toons but one. I have tryed everything and can't think what is wrong. Its just one char out of 10 that can not use it. Have any ideas what I can check?

  • #958

    Thanks all fixed! Love the add ;)


  • #957

    First make sure that the addon is enabled for that character.
    Second, log in with that character and check the options to see if the overlay's are enabled for the maps you want to see it on.If all else fails you can try quiting the game and deleteing the NPCScan.Overlay saved settings for that character.

  • #953

    i am having a problem with this addon. The overlay is showing rares from cata and I am only downloading the latest version. I cleared all my cache, wtf, and interface folders then reinstalled the addon. It does the same thing. Just gives me paths to all the old rares. What is going on here?!? I always make sure it is I also have the latest Npc scan as well.

    Last edited by rosco214 on 6/30/2014 5:27:44 AM
  • #954

    could it need updateing for the new rares?

  • #955

    Its been updates with the MoP rares for some time.  Try checking the "Show all paths" option in the settings menu and see if that causes the paths to show.  If it does, then NPCScan is not tracking the MoP mobs which will cause Overlay paths to not be displayed. 

    If that does not cause them to show up, verify that directory that you are running WoW from is the same as the one that the addon is being installed into.  It could be possible that if you are using the Blizzard laucher, that is is launching the game from a diffrent game install directory than you think it is.

  • #951

    For some reason, when i find some Rare Elite's, it doesnt alert me about them. Im very annoyed because i want to farm TLPD. Please help.

  • #952

    NPCScan.Overlay does not have any alerts, it just adds spawn points and routes to the map.  You want to use the main NPCScan, which is the addon that has alerts when a mob is found, provided you rememer to keep the game cache clear.

  • #947

    Can't bring up options menu. Says to middle click and when I do nothing happens. Would like to leave the paths and locations up all the time but they vanish whenever I come across a rare mob.

  • #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.

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