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Arena Closer

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AC

Arena Closers with the new color scheme

For the event that this tank spawns, see Arena Closing.

MiniCloserProfile

Playable Arena Closer in Sandbox.

Arena Closer

Blue Arena Closer SVG

Arena Closers appear when a match of Domination, Tag, Mothership, or Survival is finished or when a server closes in Free For All, Maze, 2 Teams or 4 Teams. It is playable in Sandbox, when using the \ key several times.

The purpose of Arena Closers is, as their name implies, to close the server; players killed by Arena Closers are then kicked from the server, then the server restarts when all players are killed off the arena. However, if the player manages to survive them (e.g. by activating God Mode on Sandbox), the player would still be kicked out from the server after a couple of minutes. Unlike getting killed by regular tanks, Dominators, Motherships, or Bosses, you will restart back at level 1 when you are killed by an Arena Closer only once. However, their levels are kept in Free For All and Team Deathmatch.

Design

The standard Arena Closer features a large yellow circular base, with a barrel that is similar to the back of a Flank Guard. It is about as large as a Dominator, and the bullets it fires are about as large as an Annihilator's bullet. In Sandbox it takes on a blue color, and is several times smaller than the average Arena Closer. The yellow variations' color is same as the Squares’ and Summoners’.

Technical

Spawning

ArenaClosedMessage

The Notification that comes up when the Arena closes.

Several Arena Closers (with a maximum of 16) will spawn when a Domination or a Tag match is finished. In 2 Teams, 4 Teams, or in FFA, the Arena Closers appear when only a few people are in the server or when the game is being updated. In Maze when the server has been up for 5 hours. Arena Closers may spawn outside of the boundaries of the map, in which case they will immediately target a player and move inside.

Behavior

Arena Closer-0

Arena Closers attacking a red Dominator

Zrzut ekranu 2016-08-28 22.36.48

Arena Closers rotating

The Arena Closer’s priority:

  • The surviving Mothership (before game mode removal)
  • Any and all players still alive (in the order of initial proximity upon spawning and then upon each killed player)
  • Any non-neutral Dominators.
  • Bosses that are in team grey (Fallen Bosses).
    Arena closer photo3

    A Tri-Angle being chased by Arena Closers

When they attack, they will shoot at the target while ramming into them. When all targets are dead or neutralized, their AI has no reason to continue to fire, so they’ll be spinning and slowly drifting in a random direction, just like regular Polygons.

Stats

The Yellow Arena Closer has:

  • Larger bullet size than an Annihilator.
  • (Old Arena Closer) An unknown amount of penetration (allegedly the same penetration as the health of a trap deployed by a Mega Trapper), and takes at most 2 hits to kill its target (any playable tank)
  • Infinite bullet penetration, it takes at most 2 hits to kill its target (because of bullet grazing.)
  • The Bullet Speed of an Assassin.
  • The Movement Speed similar to Protectors.
  • The Reload of a maxed Reload of the Basic Tank.
  • An unknown amount of health either due to having god mode (infinite health) or a lot of health.
  • Complete resistance to Damage knockback because of god mode or a passive setting.

In Sandbox mode, the playable Arena Closer has the health of a normal tank, but their bullets are still far more powerful than that of any other tank, approximately equal to a real Arena Closer.

Miscellaneous

The Arena Closers aren’t targeted by the Protectors until the Arena Closers accidentally shoot or bump into them. The base itself has no effects on Arena Closers. Also the AI Dominators, Bosses and Crashers don’t target them. Their body and bullets can’t harm shapes, the neutral bullets will just go through them, and the Arena Closers themselves will just push them out of the way. The Arena Closers and their bullets can go through the Maze game mode’s walls. Additionally, Arena Closers can go through each other.

Strategy

ArenaClosermini

A Playable Arena Closer (Distinct by its non-Yellow color and small size compared to Real Arena Closers)

Playable Arena Closer

  • Weak Against: Dominators
  • Strong Against: Every normal class

As the Arena Closer

There is no real strategy to use when playing as the most powerful tank in the game. However, you must be vigilant when other Arena Closers are present in the server, as they are one of the few tanks who can easily defeat you. Outmaneuvering them is usually the best option, but in a perfect 1 versus 1 situation, the winner is usually the Arena Closer who gets the first hit.

Against the Arena Closer

Arena Closers in the Sandbox Mode can only be easily taken on by other Arena Closers. Other tanks with massive health pools, such as Dominators which may stand a chance as long as they are careful to stay far away. All other tanks and cannot stand a tank will be quickly destroyed.

If it is distracted, with a Ranger / Stalker or Streamliner, you could have a few chances to kill them at range since you have better FoV. You also have a slight chance of Killing an AC with the Overlord when spreading your drones at the AC.

Real Arena Closer

  • Strong Against: Any tanks without god mode
  • Weak Against: None

Yellow Arena Closers are essentially invincible, so fighting them is not an option. Escaping is virtually impossible, as they are faster than the Fighter, Sprayer, and Booster class, even with fully upgraded Reload and Movement Speed combined you could not escape from the Arena Closer.

Old Arena Closer

  • Strong Against: Slow tanks, Low Penetration tanks
  • Weak Against: Fast tanks such as the Booster or Tri-Angle, Bullet Spammers such as the Triplet

Old Yellow Arena Closers are essentially invincible like current Arena Closers, so fighting them would still be hard but you can slow them down by use Triplet or Tank Bullet Spammers. You are also capable of running away from it by using Tri-Angle or Booster because in an old version, Arena Closers are as small as our tanks. This would make an Old Arena Closer as fast as our tanks. They also did not do as much damage so it was possible to out penetrate them with large bullet spammer hoards.

History

  • How Arena Closers used to look.
  • Size Comparision of Necromancer and Old Arena Closer
  • Old Arena Closers attacking a Tri-Angle.
  • Many old Arena Closers closing an arena.
  • A playable Arena Closer
  • Despite their strength and speed, their name tag used to indicate that they’re only level 1.
  • On July 31, 2016, the Arena Closers’ spawn was delayed after the message, “Arena Closed: No players can join”.
  • The Arena Closer was the first AI-controlled tank in the game.
  • It was originally much easier to escape the Arena Closers, as both their Movement and Bullet Speed were much slower than they are today. Some were able to survive their onslaught with maxed out Movement Speed, Reload and Bullet Penetration.
  • They were buffed to their current strength and speed in the same update that added the Domination Gamemode.
  • They were buffed again to be a lot bigger, so they can deal Body Damage, and shoot bigger bullets that are approximately the size of an Annihilator’s bullet, making it harder to dodge them.
  • As of September 3rd, 2016, with the addition of Sandbox Mode, Arena Closers became playable tanks, but only in Sandbox.
  • Since September 6th, 2016, they now have scores, and when they kill the Bosses the notification doesn’t state anything about “an unnamed tank” anymore.
  • Since September 25th, 2016, the Arena Closers were able to pass through Maze walls.
  • In an update, Arena Closers were no longer pushed back by damage. During the same update, they were given unlimited bullet penetration.
  • (Domination mode only) When all player controlled tanks leave/die, they will attack the player-controlled Dominators.

Trivia

  • Aside from its yellow color and shorter Barrel, an Arena Closer’s design is very similar to that of a very high level basic Tank which is slightly smaller than a Mothership so its level might be 140 or slightly lower. However, their point level visible below their name shows that they stay the same, regardless of their point count.
  • If you are killed by an Arena Closer, you don’t actually go to a new server, you just enter the renewed version of the same server. This was probably meant to prevent the game from getting massive ping freezing from redundant servers.
  • When something is shot by an Arena Closer, it seems to “fall” to one side before it is killed because of the Arena Closer’s extreme bullet knockback.
  • Arena Closers may spawn outside of the regular map boundaries. However, upon spawning, they will move inside the map boundaries (since their AI will target a player inside the map, and will proceed to move towards them).
    • Before, they spawned in the center of the map.
  • Arena Closers sometimes merge with other Arena Closers because of their 100% knockback resistance.
    • As such, they are the only tanks that can move on top of each other.
  • There was previously a glitch where Arena Closers AI broke, making them slowly drift like Polygons even if there are players left.
  • In Sandbox, the Arena Closer is just after the Necromancer when you use the \ command. This is due to the Arena Closer being the last added tank when Diep.io was released, and the Necromancer being added next.
  • Base Protectors can pursue and attack Arena Closers. However, Protectors will die upon impacting their bullet or body.
  • It has become a game in itself to try and survive the barrage of the Arena Closers for as long as possible.
    • Previously, you can survive the Arena Closers in Sandbox mode by opening a Sandbox arena, playing it as someone else, leave as the host, wait ten minutes, and enter God Mode as the other player.
  • You used to be able to survive it with a team of Mega Trappers and Hybrids until they were buffed to have unlimited bullet penetration.
  • Arena Closers come from all sides of the entire map so it is advised to stay in the middle if the player wants to survive for as long as possible.
  • Arena Closers has the shortest and widest cannons apart from all the tanks.
  • These tanks shoot the largest bullets of all tanks in Diep.io.
  • Old Arena Closers actually resemble a assassin.
  • Old Arena Closers used to be as fast as a normal tank
  • It is possible to survive a single shot from an arena closer because they have infinite penetration. Not damage. You can tell by how in sandbox, you can survive a hit from the Playable Arena Closer if you're a dominator.
Tanks
Tier 1 BasicTank UpgradeSlot
Tier 2 FlankMachinegunSniperTwin
Tier 3 Auto 3AssassinDestroyerGunnerHunterOverseer
Quad tankSmasherTrapperTri-angleTriple shotTwin Flank
Tier 4 AnnihilatorTierAuto 5TierAuto GunnerAuto SmasherAuto TrapperBattleshipBooosterFactoryTierFighterrGunner TrapperHybridProfileLandmineManagerprofileMega trapper2NecromancerOctotankOverlordprofileTierOvertrapper 2Penta ShotPredator-0RangerSkimmerSpikeSprayerSpread ShotStalkerStreamlinerTri-trapperTriple TwinTriplet
Removed Auto 4Machinegun2MegaDestroyerMegasmasherMothership 2.0X HunterCircleMounted Turret
Old Versions PredatorOldArena Closer 2.0Landmine-Old
Special New Arena CloserThreeDominatorsMiniMothershipProfileDeveloper-Upgrade

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