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Modboy Help

A Wiki


RAR5 Info 2y
  • Amendment Info regarding archive type support has been updated to reflect the recent support of RAR5 archives.
Added info about mod variants 2y Addition Troubleshooting for some common errors 2y Addition

1. Where can I find Modboy?

2. What operating systems can Modboy be run on?

The current version of Modboy (v3.7) can run on Windows 7 or higher.

3. What is the Modboy URL scheme?

Modboy uses a custom URL scheme of modboy://,, where is something like Skin or Map.

4. What games are supported?

You can see a full list of games that are supported here.

5. Help, it says "Failed to execute crucial installation command." What do I do?

First of, try checking a few things:
  • Is your game installed in something other than the default folder?
    • If so, please ensure that you've selected the proper folder when prompted for path to your game's directory. Ex. For TF2, the correct folder is the tf folder inside of the Team Fortress 2 directory, not the Team Fortress 2 folder itself.
  • Does the mod archive you're trying to download include multiple mods at once?
    • If more than one of the mods are for the same skin, that can potentially cause issues because Modboy won't be able to determine which skin you want to use from those. Encourage the mod creator to split skins for the same slot into multiple archives on the same submission instead, as those can be downloaded individually by Modboy.

6. Help, it says "Modboy doesn't know how to install this submission type." What do I do?

This error occurs when that type of submission, e.g. Gamefile/GUI/etc. is not yet supported by the configuration for a particular game. Here's the deal: Modboy works by reading configuration files from this site that tell it how to find files for specific submission types on a per-game basis. The configuration also has to be able to describe where to put the mod files in that game's folder. The error will present itself in a few different situations:

  • If no instructions are available for that mod type (such as GUIs for Team Fortress 2 currently) based on the configuration itself.
  • If no applicable files are found in the archive that match the instructions in the game's configuration - e.g. It's a sound submission, but all that's inside the archive are pictures, then it's possible this message might show up, though it's less likely to occur in the first place

7. Why aren't my mods showing up in-game?

This usually will happen if the mod submitter did not create the folder structures correctly in the archive they uploaded.

Are you a mod submitter? Note that putting random folders in at different points in the hierarchy can lead to the game not reading those files. The exception is that folder levels above the important part of the path are okay. For example: having a /MYCOOLMOD/models/materials/p225/ is fine, but having /models/materials/MYCOOLMOD/p225/ is not. Not sure if you've done it correctly? Feel free to PM me.

8. I have variants for my mod, how should I set up my archive(s)?

Having multiple skins for the same weapon, for example, in the same archive will cause Modboy to fail to install the mod properly. This is because generally speaking, it performs the task of copying over the files and backing up the old ones. It's encouraged for mod authors to break their variants into multiple archives so they can be installed separately for this reason.

9. Why aren't my M.U.G.E.N. mods working?

Unfortunately, M.U.G.E.N. requires one additional step of editing a configuration file that hasn't been figured out for the M.U.G.E.N. configuration yet.

10. Is there some way I can export a list of my mods?

Not at the moment, but it is an idea I've been toying around with. I believe the easiest format for exporting the list of mods would be to write a list of Modoby scheme URLs out to somewhere, such as the clipboard, a file, or PM. If this is something you'd like to see, let me know!

11. Modboy says it's unable to open a particular archive, what's the deal?

Recently, Modboy has been update to support RAR5 as well. If the archive is some other format and is unable to open it, but the latest version of 7-Zip is able to, please send me information and links to said submission, and I will investigate. Otherwise, please report on the original submission that the archive can't be opened.

12. Modboy appears to be stuck trying to install mod, what do I do?

Go to AppData/Roaming/Modboy in your account's folder and then delete Buffer.dat.

13. What languages are supported?

Currently 5 languages are supported:
  • English
  • Portuguese (PT-BR)
  • Spanish
  • Russian
  • Ukrainian

14. Other Questions?

Please ask below and I will update this page with the answers.

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  • Dragon0307 avatar
    Dragon0307 Joined 3mo ago
    35 points Ranked 65997th
    access_time 24d
    Modboy does not seem to recognise my games. I have Super Smash Bros. Crusade and MUGEN installed. I have only tried installing SSBC mods so far but whenever I click the modboy:// link it just opens itself while Firefox takes me to an about:blank page. The aplication itself does not do anything at this point. Also, when I open the game list it is empty. Do I need to tell it where my games are installed, and if so, how do I do it?
    I don't know why I got this
    URL to post:
  • access_time 2mo
    My problem doesn't appear above; I'm just getting a message that says "modboy failed", then a desktop notification saying "Task [Install] for mod [THE MOD HERE] failed". It tries to download what I want to download for a while, then just says that it has failed to download. I've tried downloading an assortment of things with it and I get the same error. These are the things I've been trying to download:
    Thanks for the help in advance!!
    URL to post:
  • Isaacthehedgehog avatar
    Isaacthehedgehog Joined 2mo ago
    access_time 2mo
    I can't get into the mod files. How do I do it?
    URL to post:
  • access_time 2mo edit 2mo
    It wont download mods, is it because its downloaded on a different drive?
    Bananite avatar
    URL to post:
  • Thekirbyfighter avatar
    Thekirbyfighter Joined 2mo ago
    access_time 2mo
    it just says it fallied to down load

    URL to post:
  • Dimencia avatar
    Dimencia Joined 2mo ago
    access_time 2mo
    Like many others here, unable to mod HL2, it asks for the path, I select base HL2 folder, it says it failed.  Tried selecting other folders, bin or hl2, which, each time I do so I have to redownload a mod because for some reason the option to choose the folder isn't something you thought people would need
    Occurs on all 13 mods I've tried to install to HL2 so far

    I guess I shouldn't expect software that hasn't been updated in a year to work, even on a game that hasn't been updated in a decade
    URL to post:
  • access_time 3mo
    I'm probably just being stupid, but how do you put mods on the newest edition of Modboy?
    URL to post:
  • m0istge1 avatar
    m0istge1 Joined 3mo ago
    access_time 3mo
    How do i select a game? Whenever i download a mod it always said doesent install this submission. Now i know i read the help section but i'm confused may someone pls help.
    URL to post:
  • ik1tteh avatar
    ik1tteh Joined 3mo ago
    access_time 3mo
    i have downloaded a handful of mods and some of them dont seem to have worked, a couple of them wont remove and get caught in a loop of deleting the files, i have uninstalled modboy and redownloaded it to no avail. It would be much appreciated if someone could help me out with this <3

    URL to post:
  • Paynamia avatar
    Paynamia username pic Joined 11y ago
    7,641 points Ranked 849th
    14 medals 1 legendary 1 rare
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    access_time 4mo edit 4mo
    So, I've been trying, but I can't get this program to work at all. The wiki here mentions being prompted for the game's path, but no such thing happens. All that happens is the skin downloads, then I get a message that it failed. I've tried four mods across three games so far, all with the same outcome.

    EDIT: Well, for some reason, this issue stopped happening suddenly. I came back today and it started giving me the proper pop-up asking for game locations. This, however, did manage to show me another error: The error message defined in the game config that is meant to display if a verification file isn't found doesn't seem to work. It displays a generic "failure" message. I had to look into the script for Sonic World to learn that it wants an exe named "Sonic World.exe" instead of the default name.

    None of this seemed to matter anyway, however, as I couldn't figure out what to do beyond this. It asked for a "Copy source" from the archive, which is the only file that was copied to the game's folder, and was renamed to "{MATCHED_FILE_PATH}".
    URL to post:
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