Free For All

Free For All (FFA) is a game mode in which players attempt to reach #1 on the leaderboard, with no team or base for support. To gain a position on the leaderboard players must destroy objects and other players to increase their score. The players with the top ten highest scores appear on the leaderboard. It is the first, original game mode.

It is considerably difficult to get to the leaderboard in FFA, but thanks to the duration of the game, you will likely re-spawn many times before Arena Closers sweep in and close the arena.

The FFA game mode, compared to Domination and Mothership, has a lot more players and has no "win" condition. This means that players can keep on spawning until the arena becomes overcrowded or Arena Closers start to appear. Many beginner players prefer this game mode, as there is no end and no "official" enemies. However, this game mode, along with the Team Deathmatch game mode, has the least XP gain of all game modes. On the July 20th update, your Tank and bullets are now blue while your enemies are red.

Strategy

 * At the start, it's best to stay away from any tanks. Roam around and shoot polygons. The Pentagons are the best since it gives you a lot of XP but farm Squares and Triangles first because it will take a while and other players can steal it.
 * If you're a low level tank, refrain from attacking strong tanks and don't go to the Pentagon Nest yet, even though it's the best place to farm XP, as a lot of players also go there. It is also guarded by the Crashers.
 * After the 5th August update, kill notifications no longer appear if you kill a player that's lower than you for at least 20 levels.

Trivia

 * This Game Mode is the second hardest Game Mode of all due to that everybody is your enemy. The hardest Game Mode is Maze, due to it basically being FFA but with walls inside the arena, making it far easier to find yourself cornered with low health.
 * In semi-old versions of Diep.io, tanks would appear blue, but the bullets they shoot were red.
 * This would eventually split into TDM and current FFA, with the player's tank being blue and shooting blue projectiles, but enemies being red shooting red projectiles.