This came up on the Intervals forum and I gave it a shot today.
Zwift Offline is an app that runs your own personal Zwift server (low profile). It allows using Zwift offline and even without a subscription. I used Zwift before but always was pushed away because the social aspect of the app is too intrusive for me. They try to force you to be interactive and that’s just not my kind of thing.
ZOffline let’s you use all the Zwift virtual world but without other users. You ride alone in that virtual world and I liked that a lot. You take advantage of the scenery and the terrain changes but you are not constantly pushed to follow someone else, to give a ‘Ride-On’, to sprint to the next line, etc…
If you’re like me, have a look here:
It’s fairly easy to setup on a personal Windows machine. AntiVirus suites may cause issues but if you have full control of your machine, you can simply add exclusions.