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Missing Games Checker (MGC) is a powerful LaunchBox plugin designed to help collectors instantly identify missing games from their platform libraries based on official LaunchBox metadata. Compare your local collection against the LaunchBox database, track completion percentages, filter regional variants, and export missing titles directly into LaunchBox Wishlists!

image.png.95edeb2f10042447fa315caa0bc13cb4.png   NEW in v2.1!

  • Dedicated "Wishlists" Category Nesting: When exporting missing games to LaunchBox, MGC can now seamlessly create a custom Wishlists root category in your sidebar—complete with an auto-installed Wishlists.png Clear Logo icon

  • Dynamic Hardware vs. Wishlist Categorization: Toggle between nesting wishlist platforms under the new Wishlists category or keeping them inside their default hardware categories (Consoles, Handhelds, etc.). Moving platforms back and forth carries all scraped metadata and box art automatically without duplicates!

  • Enhanced Right-Click Context Menu: Added "📋 Copy Title to Clipboard" alongside existing title/platform export tools for ultra-quick search workflows.

  • One-Click Search Clear: A sleek, interactive 'X' button now appears beside search boxes whenever text is typed, allowing you to reset your search filter instantly.

  • Title Columns Locked: The 'Title' columns are now locked in place while scrolling across the table details.

  • Improved UI & Stats Layout: Moved Platform Completion Statistics directly above the Owned Games grid for immediate visual feedback.

CORE FEATURES AT A GLANCE

  • Powered by LaunchBox SQLite: Built on LaunchBox’s modern SQLite database for sub-second load times, instant processing, and a ultra-lightweight ~1.3MB footprint.

  • Platform Completion Statistics: Color-coded completion metrics give you immediate percentage feedback (80%+ Green, 30-79% Yellow, <30% Red) on your library progress.

  • Export Wishlist Platforms Directly to LaunchBox: Generate shadow platforms filled with placeholder games for missing titles. Download box art, banners, and media in LaunchBox for games you don't even own yet!

  • Regional & Released Filters: Strict-filter missing games by region (North America, Europe, Japan) or toggle the safety-net checkbox to capture titles with missing region data.

  • Interactive Grid Search & Column Filters: Real-time global search, column header sorting, multi-value field filtering (Genres, Region, Developers), and frozen title columns for easy horizontal scrolling.

  • Collector Clipboard & eBay Search Integration: Right-click any missing game to quickly copy formatting, spreadsheet-ready tabbed data, or launch an instant eBay search query in your browser.

  • Clickable Media Links: Direct links to YouTube gameplay videos, Wikipedia articles, and LaunchBox Games Database entries right inside grid cells.

  • CSV Exporting: Export owned or missing game tables to standard CSV format for offline library management.

Instructions for Using the Missing Games Checker (MGC) v2.1:
Requirements:

  1. LaunchBox v13.19 or higher. (v13.18 and lower should use MGC v1.2)
  2. Games in LaunchBox.
  3. The LBMissingGamesCheckerPlugin.dll file.

Installation and Usage:
1. Install the Plugin:

  • Download the latest release of the MGC plugin from this page.
  • Make sure LaunchBox is closed.
  • Unblock the downloaded zip file (Right-click on the zip -> Select Properties -> Click or Check "Unblock" if available)
  • Open the zip file and place the `LBMissingGamesCheckerPlugin.dll` file into your  LaunchBox\Plugins folder (example R:\LaunchBox\Plugins).

2. Access the Plugin:

  • Launch LaunchBox, then access the Tools menu and find Missing Games Checker(v2.1).

3. Using the Plugin:

  • Select a platform from the dropdown menu and click Check It!
  • MGC will display a list of games owned and a list of games missing from your collection based on the LaunchBox metadata.
  • You can export the list of missing games to a CSV file for easy reference.

Extra Notes:

  • The Owned Games list is pulled from YOUR collection. If fields are missing information, make sure your collections metadata is up to date. Check out this LaunchBox Video on how to do that.
  • The Missing Games list is pulled from the local LaunchBox.Metadata.db file. If you find information is missing, visit the LaunchBoxDB website to see how you can contribute!
  • I've worked HARD to make the plugin as robust and efficient as I can. That being said, some computers may experience delays in processing the metadata at the start, processing any large collections' of games, and filtering/sorting large lists. Please be patient! Once you begin a process, it will complete! But the UI may become unresponsive during processing.
  • NO data is modified in this plugin. Data is compared from the local Database file (which updates automatically by LaunchBox) and your collection data reported from LaunchBox.

Troubleshooting:

Reporting Issues & Feature Requests
Click on the "Bug" to open the debug log after the issue occurs. Click the Copy to Clipboard button and provide the relevant debug log here for review.

When reporting issues, please provide the following:

  • A brief description of the issue.

  • The output from the Debug Log (via the Bug icon).

  • (Optional) Your exported .CSV file or a screenshot of the error window.

I'll review the information and post a fix/suggestion as soon as possible.

Also, if you would like to have MGC perform additional tricks, let me know!! I do appreciate the feedback and will enhance the plugin over time based on your findings/suggestions.

Special Thanks

A huge thanks to the LaunchBox team and their API documentation for making this project possible, as well as Jason's helpful video tutorial.

Check out the source code on GitHub if you're interested.

Cheers! 🍻

Edited by AgentJohnnyP
v2.1 release.


What's New in Version 2.1   See changelog

Released

📣NEW in v2.1!

Dedicated "Wishlists" Category Nesting: When exporting missing games to LaunchBox, MGC can now seamlessly create a custom Wishlists root category in your sidebar—complete with an auto-installed Wishlists.png Clear Logo icon

Dynamic Hardware vs. Wishlist Categorization: Toggle between nesting wishlist platforms under the new Wishlists category or keeping them inside their default hardware categories (Consoles, Handhelds, etc.). Moving platforms back and forth carries all scraped metadata and box art automatically without duplicates!

Enhanced Right-Click Context Menu: Added "📋 Copy Title to Clipboard" alongside existing title/platform export tools for ultra-quick search workflows.

One-Click Search Clear: A sleek, interactive 'X' button now appears beside search boxes whenever text is typed, allowing you to reset your search filter instantly.

Title Columns Locked: The 'Title' columns are now locked in place while scrolling across the table details.

Improved UI & Stats Layout: Moved Platform Completion Statistics directly above the Owned Games grid for immediate visual feedback.

  • Like 3
  • Thanks 4
  • Unusual Gem 3

User Feedback

Recommended Comments



zyute

Posted

I'm not sure what's going on but I put the .dll in the plugins folder and followed the steps but every system I check for missing games using the plugin results in it saying the system isn't in the Launchbox DB such as Atari 2600 or Atari 7800 and lists all games.

Lighad

Posted

Placed the .dll in plugins folder but nothing shows up in tools menu

JoeViking245

Posted

1 hour ago, Lighad said:

Placed the .dll in plugins folder but nothing shows up in tools menu

Have you tried turning it off and on again?  Or, with LaunchBox not running, place the file in the //LaunchBox/Plugins/ folder, then start LaunchBox.

AgentJohnnyP

Posted (edited)

Thanks for the feedback everyone! I've updated the instructions and posted v1.1.2 with enhanced error checking around the Metadata.xml file. The code will search for the file in directory now to make sure it is there. I've also updated the error messaging so it should pop errors in the data table depending on what's happening. If you still have issues, please post a screenshot of the app with the error messaging in the data table and I'll get on it. Cheers! 🍻

image.gif.41e9bed8fc471f3ed8d676d3c4b6ed2b.gif

Edit: If you do experience further issues, please click the "Export to CSV" for the Missing Games table and attach the .CSV to a post here. Thanks again and enjoy 😎

Edited by AgentJohnnyP
  • Like 1
  • Haha 1
zyute

Posted (edited)

I can confirm with the newest version it now finds my metadata file and locates the systems in the Launchbox DB. Thanks for the quick solution. This is a valuable tool that I could see many people using for their game libraries so great work! B|

Edited by zyute
  • Thanks 1
AgentJohnnyP

Posted

That's awesome and no problem!! Thanks for letting me know 😁 It was probably with how I was capturing the file originally. Made some changes and beefed up the error checking. Let me know if you can think of anything else you might need with it. Cheers!

  • Like 1
ci2own

Posted

Very interesting plugin! Thank you very much!

Is there any chance on allow windows to be resized?

 

  • Like 2
ci2own

Posted

Every time i check for Atari 7800 games, i get the next error. Hope this helps to fix it.

image.thumb.png.857aabb4af22a23d53e922c5a7cc6570.png

  • Like 1
AgentJohnnyP

Posted

Thanks for the screenshot! I'll take a look tonight and post a fix as soon as I can. Cheers!

  • Thanks 1
Maul83

Posted

Great plugin, quite helpful. One suggestion I have is to add a check box for region. It also crashes my LB a fair bit, but I get it that it is searching a lot of data. More check boxes in general might help with that but I don't know. Like if I don't want Sports game, Japanese games, I want to keep the results about say 3.0 on the community score, all that might make the search more efficient (and the list more readable) if I can pair it down. But great plugin, very helpful

  • Thanks 2
AgentJohnnyP

Posted

Filters and regions are on the way! I'm with you, I want to filter out by NA releases only and based on genre. Filters will help narrow down your lists. Optimization is also a priority (where I can, 400MB XML is a LOT of data lol). Thanks for the feedback!

  • Like 1
AgentJohnnyP

Posted

Just a heads up for what's coming to v1.2:

  • Optimization around the Metadata.xml which should:
    • Reduce crashes
    • Quicker table refreshing
    • Enhanced stability, performance, and error detection
  • "Region" data added to tables
  • Column filtering
  • Window Resizing (if I can get it working)

Should be out in the next day or two 👍

  • Like 2
lunatuna

Posted

There are some definite issues with the data thats being displayed and it being incorrect. For example for Atari 5200 its showing games as "Released" like K-Star Patrol (https://gamesdb.launchbox-app.com/games/details/4921-k-star-patrol) in your table view, but in the actual database and the link it shows it as homebrew. So something appears to be out of sync.

 

image.thumb.png.e0d3143a9f85f90eb2ff7a6d7d1d4ff0.png

C-Beats

Posted

10 minutes ago, lunatuna said:

There are some definite issues with the data thats being displayed and it being incorrect. For example for Atari 5200 its showing games as "Released" like K-Star Patrol (https://gamesdb.launchbox-app.com/games/details/4921-k-star-patrol) in your table view, but in the actual database and the link it shows it as homebrew. So something appears to be out of sync.

 

image.thumb.png.e0d3143a9f85f90eb2ff7a6d7d1d4ff0.png

I'd assume this plugin is reading a local XML file which is only updated once a day, the website is live data. It's expected that there can be differences, especially if your XML file is old. Currently the XML file I have in my test environment shows "Released" as the release type as well instead of the "Homebrew" that the website shows.

  • Like 1
  • Thanks 1
AgentJohnnyP

Posted

1 hour ago, C-Beats said:

I'd assume this plugin is reading a local XML file which is only updated once a day, the website is live data. It's expected that there can be differences, especially if your XML file is old. Currently the XML file I have in my test environment shows "Released" as the release type as well instead of the "Homebrew" that the website shows.

If there was an API for the LaunchBox DB, I would query that as well. But yeah, I only have access to the local XML data (no access to the full dataset within the LaunchBox API from what I can see either). And I double checked my XML which has that game listed as "Released" as well. Can't really help the discrepancies, but I'll keep an eye out for changes where I might be able to sync that better. Not sure, but perhaps it's also a case where the XML data is actually more up-to-date than the website? Not sure, but thanks again for the feedback!

AgentJohnnyP

Posted

1 minute ago, AgentJohnnyP said:

If there was an API for the LaunchBox DB, I would query that as well. But yeah, I only have access to the local XML data (no access to the full dataset within the LaunchBox API from what I can see either). And I double checked my XML which has that game listed as "Released" as well. Can't really help the discrepancies, but I'll keep an eye out for changes where I might be able to sync that better. Not sure, but perhaps it's also a case where the XML data is actually more up-to-date than the website? Not sure, but thanks again for the feedback!

I could always scape the LaunchBox DB programatically and pull in the data on per game request. Maybe v1.3 🫠 lol

sundogak

Posted

3 hours ago, AgentJohnnyP said:

I could always scape the LaunchBox DB programatically and pull in the data on per game request. Maybe v1.3 🫠 lol

3 hours ago, AgentJohnnyP said:

If there was an API for the LaunchBox DB, I would query that as well. But yeah, I only have access to the local XML data (no access to the full dataset within the LaunchBox API from what I can see either). And I double checked my XML which has that game listed as "Released" as well. Can't really help the discrepancies, but I'll keep an eye out for changes where I might be able to sync that better. Not sure, but perhaps it's also a case where the XML data is actually more up-to-date than the website? Not sure, but thanks again for the feedback!

For this one specific case, an update was made (I submitted change) that was reflected in the LB DB and had not yet been cascaded to the XML that is downloaded (it does now I just checked). Changes can take time to reflect in the XML depending on how the approval cycle goes (but usually 24 hours in my experience).  This is no different than how LB works things as it looks to downloaded XML for matching/updates.  Personally, I don't see why you would need to make any changes as your tools works. In fact the reason I saw this particular issue with the LB DB incorrect was with your tool. :)

Maul83

Posted

So when I start the plug in it says something like looking for metadata list, and often it just crashes everything here. I have a lot of games, and I also imported my PC games. I'm wondering if it is searching for stuff before I ask it too, and if so is it searching up Windows games Metadata? If so I think that is a major optimization point, because PC has such a huge library. It might be worth it just no support for PC games. I'm also wondering if the way my platforms are named is effecting it? For example I seperate my PC storefronts, so they aren't all under 'Windows' then have Steam, GOG etc.

AgentJohnnyP

Posted

v1.2 with better stability/performance is taking a little longer to put together than I thought (and I got a head cold right now 🤧lol). Should have it up for tomorrow 👍 Stay tuned!

  • Like 1
AgentJohnnyP

Posted

Progress Update:

I'm in final testing with the changes for v1.2. Gonna try to get it out before I pass out tonight, if not, should be ready for tomorrow! Thanks again everyone for the interest and feedback!

On 9/11/2024 at 10:55 PM, AgentJohnnyP said:

v1.2 with better stability/performance is taking a little longer to put together than I thought (and I got a head cold right now 🤧lol). Should have it up for tomorrow 👍 Stay tuned!

cc5a89e20505cf70b9b7466a6f029fd4.gif.a72d253d7bc65e4a0129628743b8b69a.gif

  • Like 1
AgentJohnnyP

Posted

I've just about got it down. Couple of issues to cover still but v1.2 should be out tomorrow! Will be worth the wait. Processing well now without hanging the UI which should be beneficial especially on older machines. Stay tuned!

image.gif.b52bcdd21b41719175ed454e493bdf55.gif

On 9/13/2024 at 9:22 PM, AgentJohnnyP said:

Progress Update:

I'm in final testing with the changes for v1.2. Gonna try to get it out before I pass out tonight, if not, should be ready for tomorrow! Thanks again everyone for the interest and feedback!

cc5a89e20505cf70b9b7466a6f029fd4.gif.a72d253d7bc65e4a0129628743b8b69a.gif

 

rdscarlisle

Posted

finds all databases in this version although seems to hang and lock up launchbox for a long time when searching for metadata file

AgentJohnnyP

Posted

Thanks again for the interest everyone! I've been diligently working on version 1.2 but it's turned out to be a bit more than I thought lol pretty much a complete remake with stability and performance in mind. It's about 97% ready! Although, I've been at 90% for about 4 days now lol Hang tight! This one will be a winner 🏆 🫠 Hopefully in the next few days 👍 Until then, cheers 🍻jerry-jerry-springer.gif.0b1277d8a37c167aa8644a64ee30e369.gif

  • Like 2
AgentJohnnyP

Posted

The day has come! v1.2 is out! Please check it out and let me know how it's working for you. I haven't touched C# in 12 years, so v1.2 is me trying to catch up on it lol :) Thanks again for all your feedback! This wouldn't have happened without that push. Happy gaming!
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  • Thanks 2
zyute

Posted

The difference in regard to speed and performance between 1.1.2 to 1.2 is huge. While it used to take upwards of 30 seconds to a minute for me to look up the metadata now takes 5 seconds. The plugin used to on occasion freeze or refuse to find my systems but that's now a thing of the past. Customization is a highlight for me as being able to use the filters allows me to do a deep dive into what i may have missing from a certain company or type of game. The debug menu option could come in handy if there are other issues that may arise. Neat animation by the way. Never would of guessed it was that long for you since the last c# use as this shows you know what you are doing. Keep up the great work and id love to see what comes next.

diekatzlei-die-katzlei.gif.9c7f5a558f269520e99d1cad4132b0b1.gif

  • Thanks 1

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