Go to https://www.nexusmods.com/ and create a free account.
Click on the option mods at the top of the website and then download the Vortex mod manager on the right top.
Once the download is done, install vortex onto your PC and open the program.
In vortex go to the tab games on the left side and search for the game ''Ready or Not'' and click on manage, Vortex will then ask you to tell it where the game is installed on your system and might want you to restart the program.
When that is done, reopen Vortex and minimize it.
Now go back to the Nexus website and use the search bar to find the game Ready or Not.
Then scroll down to mods and click ''view all'', as of writing this guide there are 3,682 mods for Ready or Not on the website.
Find yourself a mod you like and click on it, it will open the mod page and show you a description, some pictures.
When you find a mod you like, click on files, click on mod manager download and then slow download.
It will give you popup asking if you allow it to download it to vortex, it will also give you the option to auto allow it.
When the download it, it will maximize Vortex and start downloading the file in it.
When done go to the tab mods and click on the blue button to install the file.
Then enable the mod and now you are ready to play with the mod installed.
You can start the game like normal in steam or click left top in vortex on the game banner on the play button.

IMPORTANT Notes
- Make sure to see if a mod needs a requirement, on the description page it will tell you if and what is needed for the mod to work, it will then also give you the links to the mods.
- Avoid any mods that where made before July 23, 2024 and haven't been updated since.
This was the moment that Ready or Not switched to Unreal engine 5 and those mods aren't working on the Unreal engine 5.
- Using mods will in most cases disable the ability to earn achievements

https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3498442654