Decagon

The Decagon is a building on Cybertron from the Dreamwave portion of the Generation 1 continuity family.

Twice as important as that five-sided place.

The Decagon, also known as Autobase, is a fortress-like building on the western perimeter of the city of the High Council Pavilions, located in Iacon. It is the main Autobot control center of planetary security and defenses.

Fiction

Dreamwave Generation One continuity

Jazz, Prowl, and Bumblebee were in the Decagon discussing Optimus Prime's decision to head underground alone to face Megatron after the destruction of the Forum of Enlightenment. Skids alerted them to an incoming attack of Decepticon fighters under the leadership of Shockwave. The War Within #2

The four Autobots managed the battle from the Decagon, sending out marching orders and battle assistance to their troops. Jazz declared the attack on the Decagon as "really stupid" since it was the Autobots' strongest position on the planet. Meanwhile, Prowl wondered aloud if that current attack, the destruction of the Forum, and the disappearance of their leader were all somehow connected. The War Within #3

After the Decepticons successfully invaded Iacon, Prowl's group gathered in the Decagon for one last rousing speech before going into battle with the enemy. The building was presumably destroyed along with most of Iacon when Starscream engaged Cybertron's sub-planetary mechaforming platform. The War Within #5

Live-action film series continuity

The Decagon exists and is surrounded by the area where the Autobase is located, Tyrest, the area where the Tagon Heights are located, and the Neutral Territories. It houses a secret war factory. Risk

Beast Wars: Uprising

Decagon was located on the northeastern border of the Tagon Heights, and was one of the cities annexed by the Maximal Command Security Force as part of their neutral "Maximal Nation". Cultural Appropriation Safe Spaces

Games

Transformers: War for Cybertron (Xbox 360/PS3/PC)

Following the apparent death of Zeta Prime, an Autobot officer named Optimus took temporary command of the Autobots and led his squad down the ruined Iacon speedway in order to reach the Decagon. There they could use the communications tower to contact the Autobot ground forces. However, Starscream was waiting for them, and attacked. After chasing Starscream from the room, a distress call from Zeta Prime was projected in the Decagon's communications grid. Though it was an obvious trap, the message gave Optimus hope their leader could be rescued. Transformers: War for Cybertron

Merchandise

• Risk: Transformers — Cybertron Battle Edition (2007)

The Decagon is one of the red zones on the board of the game.

• Transformers Monopoly (2007)

Decagon replaces Mediterranean in this version of the game.

Notes

• In Transformers: War for Cybertron, just before the assault on the Decepticon-controlled Decagon starts, it transform or at least reconfigures itself. It bears a resemblance to Floro Dery's original design for Autobot City: [1], especially the finger-like towers.
• A Decagon is a ten-sided polygon. As this Decagon is a military headquarters, it's probably a reference to the Pentagon.