If you open a ninjatrader demo account, you get futures data for 1 month for free.
Then again you open another demo account, with a different mail adress.
And keep on doing it, as long as you wish.
There are no workaround CME rules. They enforce them on the FCM and data feed level.
Each customer is entitled to 30 days of real-time demo data annually (source: data and execution vendors).
The word "annually" caught my attention here. Does this mean that I can re-activate the demo on the platform that I was using back in 2019?