In case it's not common knowledge, make sure license key requires a server-side verification.
I imagine if you don't have enough content to show for level(n), it is okay to show some of the level(n-1) content that shows your natural upwards progression
In case it's not common knowledge, make sure license key requires a server-side verification.
I imagine if you don't have enough content to show for level(n), it is okay to show some of the level(n-1) content that shows your natural upwards progression