Hi!
In case you don’t already have one you will need a DAW that can load VST3 plugins.
Then you just copy the .vst3 file to a location where your DAW can search for it. The system default on windows is: c:\Program Files\Common Files\VST3\
.
Now you should be able to start your DAW and find the plugin. The 0.3 version will show up as Emergence, the beta as Emergence1.
Hope this helps, let me know if you have any questions