Nerdy is one of the four skins released under the Party part of the Agar.io Birthday offer. It was available for purchase in late July 2017.
Nerdy could be purchased for $4.99 as part of the Regular Pack. This pack also included the Dazzled skin and 3250 coins. Nerdy was not available for individual purchase and may not be available for purchase in the future.
Details of this offer may vary depending on location and platform.