Level

Traits and most upgrades are unlocked by obtaining experience and increasing your level. There are no unlocks beyond level 21 and your level caps at 500. Unlike your rank, your level does not reset and the end of a season and persists with your profile.

Experience
Experience is gained by playing matches against players. After completing a match, you receive experience equal to your score and an additional 500 if your team won. The experience required for a level is approximately equal to 700 times the level raised to the 1.3 power. The level cap of 500 occurs at 2258182 experience. While the game might not display levels higher than this, it will still keep track of experience gained. Using the previous formula, one can determine what level they have reached beyond the limit.