Domination

Domination is a Game Mode in Diep.io. It is very similar to Team DM, as you're part of a team in both. But this game has a win condition: Capture all four Dominators. XP gain is also doubled compared to FFA and Team DM.

Gameplay
This game mode is basically a Capture the Flag type, where two opposing teams must capture four huge turrets.

Dominators
Main article: Dominator

Dominators are the big turrets in Domination game mode.

These four turrets fire giant bullets able to destroy even the toughest tanks, but have a limited range and a long reload time.They also have a lot of health, but lack firepower to fend off the opposing team (assuming that it is already captured).

The turrets start off neutral. This means that they will attack anyone regardless of which team they are in. If they are 'defeated' while neutral, they will join the team who dealt the last hit. If they are defeated while on the enemy team, they will become neutral (or 'Contested'). Afterwards, their health is restored. Therefore, teams must defend the Dominators they currently have, while attempting to attack the other team's Dominators. If a team captures all four Dominators on the map, they win.

End game
After one team has captured all four Dominators, Arena Closers will spawn and close the server.

Map
As of July 20th, the spawnpoint for the blue team is in a corner and the red team spawnpoint is another available corner (e.g. Blue Team spawns at the top right and Red Team spawns at the top left). When a bullet touches the opposite team's border, the border destroys it. There are small triangles (Guardians) inside spawn protecting the border. On the minimap they are shown as blue and red square.

The Pentagon Nest is located in the middle of the map. There are Pink triangles guarding it as usual, but it seems like there are more than in Free For All game mode.

At each corner of The Pentagon Nest there is a Dominator. On the minimap they are represented by 4 small squares:
 * If a Dominator is captured by any of the two teams, the squares will turn into the team's colour. For example, if Team Red captures a Dominator, it will turn Red.
 * If a Dominator is neutral, or being contested, the square will be Yellow.

Trivia

 * Domination was added June 2nd, 2016.
 * This is the first added game mode that has win conditions.
 * You gain XP faster in this game mode since the game ends after a certain point.
 * This is the only game mode without a scoreboard.