It's always the same thing. You enroll in an Azure course for a couple bucks but then you have to pay for the resources you deploy in your own Azure subscription while you learn.
Well, now you can learn how to perform typical tasks in Azure without the need for a live Azure subscription. This simulator gets you access to a simulated Azure environment, where you can perform many different Azure tasks, like deploying a resource group or provisioning a virtual network, without spending a dime in Azure charges!
By the time you finish the exercises in this simulator, you'll know how to actually DO many of the things you learned about in your online Azure courses!