A guide to mod the game Mary Skelter: Nightmares. It will get updated as users find more and better ways to do things, please comment improvements on the comment section.
 
 

Tools Utilized

Quickbms with scripts (All provided here): https://drive.google.com/file/d/1H7Z7NjL5vRWFJq7cJjDYAvgArwJVXxh2/view?usp=sharing – [google.com] 
 
Paint.net – [Paint.net]  which you can download freely: https://www.getpaint.net – [getpaint.net]  (I am unsure other image edition softwares work as well)
 
 
 

Extraction of files

First go to your game folder and make a backup for all the .bra files (since modding here includes completely overwriting the existing files, you will need a backup in case something breaks)
 
 

 
Now that you are here, we will extract the .bra files that you want to mod (You might want to extract everything and browse around it to find what you want to change) In this case, we are going to modify an image in the TTM3 which is for the Thumbelina Blood Witch sprite on the class change window of the laboratory!
 
 
So first to extract we will run the quickbms.exe and select the coyote_console as the script
 
 

 
Then we select our input file(In this case TTM3)
 
 

 
And finally the folder where the files will be extracted
 
 

 
As result we have now a new folder in there with the name of our original archive, don’t worry this extraction does not modify the original archive.
 
 

 
 
In this case what I will modify is in the file 03_job_char05.cl3 03 stands for thumbelina (The numerals are in order appearence according to developers intention) job stands for class, the 05 is the class order, which in this case is Blood Witch.
 
 

 
 
With all that said, all we need is that file, all the rest can be deleted because the program will only overwrite the files in the original .bra (which is why a backup is needed)
 
 
Now we are going to the extraction of the CL3 files, to that we are going to use another quickbms script called CompileHeartCL3_PC, but the rest is the same as the original extraction
 
 

 
 

 
 

 
 

 
 
 

Edition of textures and images

This guide will cover an edition that covers texture and images but it is possible to edit other things like audio as well by just changing the original files with an audio of the same format without many procedures, this guide may be updated in the future to cover those things as people start to discover how to edit them.
 
 
What we want to edit here is this TID file, it’s the one that includes the image that we want
 

 
To do that we need to edit the file type from tid to dds, which will require you to do the following steps:
 
Go into view and check this box
 
 

 
Then check this box after going into options
 
 

 
 
After changing the file extension we open it into paint.net – [paint.net]  to edit the file whatever we want
 
 

 
 
After doing our changes we save it in BC7 to keep most of our image quality
 
 

 
 
And then we name our file back to .tid
 
 
 

Re-insertion of files and Mod insertion

Now here comes the specially messy part, we are going to reimport the files utilizing quickbms, but as there was no built script that reimportation works naturally the process is quite odd
 
 
First select the files that were inside the original CL3 and click add to archive to a winrar
 
 

 
On this tab YOU HAVE TO select the .rar extension and keep the store compression, otherwise the files will be compressed and in-game they won’t be recognized as it should
 
 

 
 
After doing that, like you did with the extension, rename the .rar into .CL3, and change the name into something that won’t conflict with the original .CL3
 
 

 
Now on quickbms we are going to use the reimport to reimport the CL3 first, the .rar is a fake CL3 and we can’t use it directly and that was made for CL3s wouldn’t work normally, so we will trick this script, first click the reimport.bat
 
 

 
Then select the CL3 script
 
 

 
Now we select the original CL3
 
 

 
And finally our fake CL3 made with the .rar
 
 

 
With that we have to delete the files that weren’t originally in the TTM3, keeping only the original file
 
 

 
 
Now with the CL3 done we will have to reimport the TTM3, gladly the .bra files have the reimportion feature worked out, so it will be simpler, open the quickbms reimport.bat again
 
 

 
Select the coyote script as last time
 
 

 
Select the file you extracted (You can use a copy of it if you want to keep a folder to your mod stuff)
 
 

 
Then select the folder of the file you extracted
 
 

 
 
And that’s it! I really hope to see mods of the game after I posted this, and if anyone makes a mod leave the link in the comment session as well!
 
 

 
 

 
 
Hope you enjoy the Guide about Mary Skelter: Nightmares – How to Make Mod + Tutorial Guide, if you think we should add extra information or forget something, please let us know via comment below, and we will do our best to fix or update as soon as possible!