Each Live account holder at Tradovate also has unlimited access to the Simulation environment. You can choose which environment you would like to access when logging in.
Useful links for understanding simulation availability:
https://www.tradovate.com/platform/
https://tradovate.zendesk.com/hc/en-us/articles/205816177-How-do-I-switch-between-my-simulated-and-live-accounts-