Diep.io is a survival game where you control a circle armed with a cannon. The objective is straightforward: navigate the map, destroy other players, and advance and enhance your own circle. To level up, move around the map and shoot different blocks. Since you get upgrade points for each level up that you can use to upgrade one of eight areas, it's advisable to stick with this for a while before attempting to take on other opponents.
To provide additional firepower, a player would wish to focus on their bullet damage and speed. Every player for themselves in a free-for-all mode is the main mode. However, there are other game types like dominance, 2 teams, 4 teams, maze, and tag. Examine the many game modes to determine which ones best fit your style of play. Remember to select your circle color and an appropriate gamer tag as well!