Diep.io is a popular online multiplayer browser-based game that combines elements of action, strategy, and competition. In this game, players control a tank-like entity on a blank grid, where they must navigate, shoot, and strategize to outmaneuver and eliminate other players and AI-controlled shapes. The game's name, "Diep.io," is a play on words, with "diep" being the Dutch word for "deep." As you progress in the game, your tank can evolve and become more powerful by gaining experience points, allowing you to choose from a variety of upgrades and specializations. With its simple yet engaging gameplay, Diep.io offers players a thrilling and addictive experience as they strive to become the most formidable tank on the battlefield.