Your Idle-Empire account has a certain level that is based on the amount of experience (XP) that you earn over time. There is no level limit.
XP can be earned by earning points. You earn 1 XP for every point that you earn.
You can see your current level and your current amount of XP when you visit your Idle-Empire user profile.
Your account level does not have any impact on your earnings, it's just a visual feature. There are plans to add small features in the future that can only be accessed at a certain level.
Your level is calculated through the following function:
Accordingly, the following function is used to calculate your XP:
Here's a graph showing the correlation between level and XP: