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The Alpha Decagon is a large white shape that can only evolve from Alpha Nonagon and only in the pentagon nest.


The Alpha Decagon is supposedly a re-work of a removed Decagon, with changed color. It was supposedly added in late 2019. On September 27, 2019, it's health was nerfed. As of October 19, 2020, Led Zeppelin is no longer able to push these.


The Alpha Decagon is a large white decagon that is about as large as an Alpha Pentagon.


The Alpha Decagon has 600 health and gives about 35000 experience upon destruction. It can only evolve from Alpha Nonagon in the pentagon nest, and cannot evolve further. Alpha Decagon has higher resistance compared to Alpha Nonagon, that's why it is noticeably harder to kill.


If you have reached the highest tier and have a high DPS, like Splitter, you can destroy Alpha Decagon for its experience. As a tanks with lower tiers, you will unlikely be able to destroy Alpha Decagon without wasting too much time. You can also use Alpha Decagon in defensive purposes against Bots, if you are unable to defend by yourself. In this case, you can move behind Alpha Decagon and trick bot into ramming Alpha Decagon and taking massive damage. This will force the bot to retreat.

Simple Shapes EggSquareTrianglePentagonBeta Pentagon
Splitter Shapes Splitter SquareSupersplitter SquareSplitter PentagonSplitter HexagonSplitter Decagon
Green Shapes Green Square • Green Triangle • Green Pentagon • Green Beta Pentagon
Orange Shapes Orange Square • Orange Triangle • Orange Pentagon
Golden Shapes Golden Egg • Golden Nonagon • Golden Icosagon
Alpha Shapes Alpha PentagonAlpha HexagonAlpha HeptagonAlpha OctagonAlpha NonagonAlpha Decagon
Sanctuary Spawned Shapes Giant EggGiant SquareGiant TriangleGiant PentagonBowed Sanctuary SquareSnowball
Removed HexagonHeptagonOctagonNonagonDecagonIcosagon
Special Black Pentagon
Normal Egg SanctuarySquare SanctuaryTriangle SanctuaryPentagon SanctuaryGolden SanctuaryCrasher SanctuaryBowed SanctuarySnowball Sanctuary
TESTBED Mega Sanctuary