How to Unlock the Arena in Armored Core 6 (AC6)

1v1 me, arena, no items.

Armored Core at its finest is when two ACs engage in a duel of strength and steel, and that’s exactly what the Arena in Armored Core 6 is all about. Pitting your mech against a singular, evenly-matched opponent is the best way to test your AC’s capabilities to its max while also reaping some rewards for emerging victorious. Continue reading to learn how to unlock the Arena in Armored Core 6: Fires of Rubicon.

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Armored Core 6: How to Unlock Arena Combat

In Armored Core 6, the Arena is unlocked by completing Chapter 1 Mission 08, Operation Wallclimber. This is a lengthy mission with a notable boss fight at the end, so make sure you’re prepared with your best loadout before taking it on. For tips on taking down the final boss of the mission, check out our guide on how to beat the HA-T-102 Juggernaut.

Armored Core 6 Juggernaut Boss
Screenshot by Prima Games

Once defeated, the mission will conclude, unlocking both Arena mode and OS Tuning.

Related: All Missions in Armored Core 6 (AC6)

What is Arena Mode in Armored Core 6?

Arena is a separate mode from the main missions, allowing you to pit your AC against computer-controlled ACs in various locations. At first, you’ll only have three different opponents to challenge, but more will unlock as you progress further in the main story missions.

Defeating opponents in Arena will reward you with credits to spend on parts, OST Chips to increase your AC’s stats even further, as well as the loadout of the opponents you beat. If you’re looking to make your AC even more powerful than what’s currently available, earning OST Chips in Arena is exactly where you need to be.

That’s all you need to do to unlock Arena in Armored Core 6. Now that you have access to the OS Tuning system, check out which OST upgrades are worth getting first in Armored Core 6.

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Matt Vatankhah
Matt's writing career began when he joined Prima Games in 2022. As Managing Editor, he tries to make sure everything you read looks as pretty as possible. He's had a passion for video games all of his life and really loves Final Fantasy, retro FPS, roguelikes, and metroidvanias. He will absolutely stomp you in Tetris.