The most popular game in the world, Arena of Valor, will kick off its two-week long closed beta on Nintendo Switch next week. The highly popular mobile MOBA will begin its summer beta period starting next week on June 28. The beta will only be available in North America and Europe, and fans can now enter for their chance to win an entry code by signing up through the website. While already a massively popular title in China, the MOBA only officially arrived on Western mobile devices last December.