A hero's level is a measure of how powerful they have become. A hero can increase their current level by gaining Experience.
Upon levelling up your hero is not required to return to Godville to update the authorities of this development and may continue adventuring at their own pace, however slowly that may be. Certain parts of gameplay are available once a certain level has been achieved.
When levelling up, a hero or heroine will do so without assistance from their Deity. A notification is sent to the Deity's device, and an entry will appear in the Third Eye, if unlocked.
As an added bonus, his or her health is fully restored and the Deity's Godpower is refilled to 100%, as well as advantages noted above. They also gain access to higher level weapons and armor. As a hero or heroine's level increases, so does their ranking in the Pantheon of Might.