Hello,
Thanks for the interest in the Events Calendar. We do not have a feature to display events on multiple WordPress installs.
The closest I can think of is having all the sites in Multisite and then using the Premium version of the ThreeWP Broadcast Plugin
Broadcast
To create events in one site and then broadcast it to the other sites in the multisite. We would not be able to support that process, but we can support the Events Calender still.
Here is our FAQ about Multisite Licenses:
https://theeventscalendar.com/knowledgebase/buying-licenses-for-multisites/
Let me know if you have any follow up questions.
Thanks