1. Go to a safe area like your home to minimize the chance of bugging out any quests.
2. Go to your saves and press "Save to Disk", you will find your save file in your PCs downloads called something like "monster-slayer-20240721-183209.save". (The numbers are just the date and time you saved it.)
3. Go on google and search "save editor", the first result should be saveeditonline.com, which works like a charm. On the website, upload your .save file, it will then automatically be converted to editable text.
4. The contents of the save data are in the JSON file format, which might look confusing if you're not familiar with it, but don't be intimidated. Eventually, you will find a lot of lines looking somewhat like this:
"deaths": 0,
"money": 100,
"hunterSkill": 3,
"healSkill": 0,
This is where stats and other information about your save is stored. Note that the numbers won't always look like this, they depend on your save data, I just took some random ones.
5. Go to the line with "money" and change the number to however much money you want, like "money": 99999,. You can change other stats too, but don't overdo it, certain changes might break the game, especially quest related variables.
6. Once you're finished, press the "download" button on the website, to download your edited save file, looking something like "monster-slayer-20240721-183209(1).save", though the name doesn't really matter.
7. Go back into your game, into your saves, and press "Load from Disk", then select the edited save file. You're now back to where you saved, but with all the money you want.