You might be familiar with installing plugins from the Unreal Engine Marketplace, however the plugins you get from me will be provided as a zip file and the process of installing them is slightly different, but still quite simple.
First you’ll have to right click and extract the zip file.
The way this context menu looks for you depends on if you have winrar installed or are using the default way of extracting archives.
You should then get a folder which looks similar to this and has a uplugin file inside.
You then want to just copy the entire folder of your plugin.
Find the folder of your Unreal Engine Project you want to use the plugin on.
The easiest way of doing this is to open up the Epic Games Launcher and under Unreal Engine -> Library just right click the project and select Show in folder.
Here you then need to open up the Plugins folder, or create one if it doesn’t exist.
And then just paste the folder of your plugin in here.
<aside> ⚠️
Ideally you’d want to use a plugin with the same engine version as your project and in that case you’re already done!
However, sometimes you have to use older plugins and you’ll have to go through the following steps as well.
</aside>
When you start up the project now you might get an error message telling you the plugin is incompatible since it was designed for another Unreal Engine version.
When asked if you want to attempt to load it anyway, select Yes.