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Polygons are naturally-spawning shapes that dot the arena. They serve as regularly harvested, naturally occurring score (only in some game modes) and XP resources, and are an essential feature of the game. Some Polygons like the Crasher and the Alpha Pentagon only spawn in the Pentagon Nest.

Technical

Polygons are weaponless shapes that drift around and are destroyed for EXP. Their only form of defense is their low body damage. Crashers that are looking for a target will slowly drift until a target appears, then they will chase it. They may be pushed by tanks, Ammunition, Arena Closers, Protectors, some Bosses, and other Polygons such as Crashers. Crashers are capable of pushing each other around. 

The number of Polygons able to spawn in an arena is directly related to how many players are currently occupying the arena. In Sandbox mode, a single player yields twelve polygon spawns, but it is unknown what the exact ratio actually is since more players might not yield an exact 1:1 ratio. In Team DM with less than ten players (meaning the Leaderboard isn’t even fully filled), Polygons are very scarce to come across since the Polygons may spawn anywhere inside the arena (except in spawn areas), and very few of them spawn due to a low amount of players. Most of the time when this uncommon situation occurs, the Pentagon Nest is literally barren of all Polygons (since Pentagons have a lower spawn rate in general, even in the Nest), and the corners of the arena have basically what little of all the remaining Polygons clustered together. This also explains why Pentagons are so rare in their own nest (the area blocks non-Pentagons or non-Crashers from spawning, yet has a regular Crasher and Pentagon spawn rate). 

Polygons will regenerate health if they are left unharmed for at least thirty seconds, and will spawn out of other Polygons if left alone long enough, harmlessly repelling each other as they divide. A player will gain experience from any Polygon that they destroy so long as they deal the final blow to that Polygon.

Most Polygons will simply drift around. Squares and Triangles will always drift around in fixed circular paths (assuming the Crashers aren't targeting a player). However, Pentagons can move in either a fixed circular path OR a fixed elliptical path.

Some Polygons are AI controlled. Crashers, for instance, will chase down the player to defend the Pentagon Nest if the player is within their attack range.

On rare occasions, a player may stumble across a green version of a Polygon. These variations have a much higher health pool and award ten to a hundred times the amount of XP to the tank that gets the final blow on one, although their spawn rate is almost nonexistent - only very few have been caught on videos.

Squares

Main article: Square
Square

The Square is the weakest and most common type of Polygon in the game and as such gives little experience, but is useful for Tier 1 players as a way to gain experience. It only grants 10 XP in FFA, 2 Teams and 4 Teams and since Domination has a multiplier of two, it effectively grants 20 XP in that mode. Necromancers can convert yellow Squares into their own Drones by touching them, either with themselves or with their Drones. The Square has a very rare green variation called the Green Square.

Green Squares

GreenSquare
Main article: Green Square

The Green Square is a very rare Polygon. It is similar in appearance to the standard Yellow Square but is colored a bright lime green color. When killed, it drops 1,000 XP points in FFA, 2 Teams and 4 Teams style modes. Like a basic Square, it can be “infected” by the Necromancer. It has more health than normal square. If you destroy one, you will get the “Shiny!” Achievement.

Triangles

Main article: Triangle
Red Triangle

The Triangle is stronger than the Square, but weaker than the Blue and Alpha Pentagons, making it the second weakest Polygon. Currently, it drops 25 experience points in all Game Modes, but in Domination the multiplier is double, so though only 25 XP is gained, 50 is effectively rewarded.

Green Triangles

Main article: Green Triangle
GreenTriangle

The Green Triangle is similar to the regular Triangle but has a bright green color and is ten times tougher to destroy than the normal one. It drops 2,500 XP in FFA, 2 Teams, and 4 Teams. If you destroy one, you will get the “Shiny!” Achievement.

Pentagons

Main article: Pentagon
5gon

The Pentagon is the second strongest Polygon among the polygons that spawn outside the Pentagon Nest, and is regarded as the simplest and best source for experience. Tier 1 tanks will benefit greatly if the opportunity arises to destroy one. It currently grants 130 XP in FFA, 2 Teams, and 4 Teams modes, and in Domination the XP multiplier is double, so it effectively awards 260 XP. Like the Triangle and Square, it also has a rare green variant called the Green Pentagon, as well as an unconfirmed (and probably much rarer) orange variant, called the Orange Pentagon.

Green Pentagons

Main article: Green Pentagon
GreenPentagon

The Green Pentagon is similar to a Blue Pentagon. It has around ten times the health of a normal Pentagon, and grants 13,000 XP to whomever lands the killing blow. If you destroy one, you will get the “Shiny!” Achievement.

The Pentagon Nest

Screenshot at May 15 19-23-39

Picture from the middle of a Pentagon Nest. (The large pentagons are Alpha Pentagons.)

Main article: The Pentagon Nest

The Pentagon Nest is an area located in the center of the arena. It has a high concentration of Blue Pentagons and Alpha Pentagons. Large and small Pink Triangles - known as Crashers - only exist here. They will target players entering the area and will continue to chase them down outside it.

Alpha Pentagon

Main article: Alpha Pentagon
AlphaPentagon

The Alpha Pentagon is the strongest Polygon in the game. It takes many hits to destroy even for the strongest players. It is also the largest Polygon in the game. Killing one rewards 3,000 experience, which makes it the largest and most coveted source of experience in the game. Alpha Pentagons only spawn in the Pentagon Nest.

One can easily tell an Alpha Pentagon from a normal Pentagon by the thickness of its outline; an Alpha Pentagon’s outline is much thinner, compared to its total body size. Also, regular pentagons are dwarfed by its massive size making it stand out in the crowd.

The Alpha Pentagon is also the only Polygon that has not been confirmed to exist in any color other than normal blue; some videos showcasing green or orange Alpha Pentagons exist but have been proved fake.

Crashers

Main article: Crashers
Crasher
CrasherSmall

The Crashers often come in swarms and will seek players in range, taking on the form of a Pink Triangle. They spawn in the Pentagon Nest but will continue to follow the player (even into their Base) until either the Crasher is destroyed, or the player. Becoming invisible is also a viable tactic in avoiding them. However, once they have spotted a player they will target it even if they’ve turned invisible. They have two sizes: Small and Large. The small Crasher has the same amount of health as the Yellow Square has. The Large Crasher has the health of the Red Triangle. Large Crashers give twenty five EXP, and Small Crashers grant fifteen EXP. They have a field of view slightly lower than the Assassin’s.

Trivia

  • The points given by the Polygons don’t decrease as you get bigger, contrary to many people’s belief. It just takes more points to level up to higher levels.
  • In the very early versions of Diep.io, Polygons didn’t exist, forcing you to immediately start fighting others at Level one, making the game practically impossible for new players.
  • Polygons have a slightly different amount of Body Damage between each other but the default Body Damage of tanks is the highest.
  • All Polygon Bosses, excluding Fallen ones, have a body identical to a Polygon:
    • Guardian = Crasher
    • Summoner = Square
    • Defender = Triangle
    • There is no Boss based on the Pentagon, this is possibly due to the existence of the Alpha Pentagon.
    • There are no bosses based off any Green Variants.
    • The bosses when idle all move identically to a Polygon with the only difference being their set course.
  • People have thought that a much rarer version of the Pentagon existed. This is the Orange Pentagon. There have been no confirmed videos of the Orange Pentagon, if it does exist.
  • 2 Polygons do not have Green Variants. Those polygons are the Alpha Pentagon and the Crasher.

This section contains bugs related to Polygons. Before adding a bug to this list, consider the following:

  1. Please screenshot, then reload. If the bug happens a second time, then get a second screenshot to verify that the bug is still happening.
  2. If the bug is still occurring, please post the bug report with the appropriate system template,  PC  or  Mobile , depending on which platform the bug has been encountered on.
  3. Describe the bug in detail, but avoid having conversations in the description and/or using first-person-anecdotes: such discussions belong in either the comment section or on the appropriate forum board.
Click to Show Bug List

Unpatched Bugs

Sandboxglitch

A Sandbox arena that has no polygons since the Necromancer collected them all

  •  PC  Capturing all Squares in the Sandbox arena alone as a Necromancer will prevent any more Polygons from spawning until any of the squares are destroyed. A possible reason for this is that the captured squares are still counted as Polygons, and only twelve Polygons can spawn in the Sandbox arena when there is only one player.
Polygons
SquareSquareRed TriangleTriangle5gonPentagonAlphaPentagonAlpha PentagonCrasherCrasherSmallCrasher
Rare Polygons
GreenSquareGreen SquareGreenTriangleGreen TriangleGreenPentagonGreen Pentagon
Miscellaneous
5gonPentagon NestAlphaPentagon

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