Where to Spend Eridium in Borderlands 4

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In Borderlands 4, Eridium reappears as a form of currency, but unlike its role in earlier installments, it holds significantly more importance. Unlike before, it’s no longer just used for purchasing items; instead, players will find themselves requiring large amounts of it once they progress to the endgame.

As you embark on your initial journey for Borderlands 4, it’s quite probable that you’ll accumulate a substantial amount of Eridium. This might leave many players scratching their heads about how to utilize this newfound resource. Fear not, for you can advance through the campaign without engaging in any side missions or additional activities, and if you’re genuinely interested in learning more about Eridium, here are some ways you can put it to good use!

This article contains light spoilers regarding Borderlands 4’s endgame content.

How to Use Eridium in Borderlands 4

In Borderlands 4, Eridium primarily serves as a resource geared towards endgame content. It’s essential for engaging in various tasks that can only be accessed after completing the primary storyline. These activities encompass:

1. Eridian artifact hunting and deciphering.
2. Upgrading weapons through Eridian Fabricators.
3. Finding and using Eridium-infused equipment.
4. Interacting with special events and challenges tied to Eridium.

  • Resetting boss fights with Moxxi’s Big Encore
  • Respeccing Specializations
  • Transferring Firmware from equipment

Moxxi’s Big Encore

During your gameplay, Moxxi’s Encore Machines can be accessed throughout the campaign. However, once you complete the main storyline, you’ll gain access to the Big Encore option. Unlike the standard version, Big Encore requires Cash and Eridium. As a reward for using this feature, the boss you’re about to reset will see an improvement in their loot drop rates.

As a hardcore Borderlands fan, I can’t help but get excited about this! In Borderlands 4, it seems like the Big Encore is going to be a massive Eridium drain for all of us. But

Resetting Specializations

As the game enters its final phase, you’ll gain access to the branching path of the Specialization skill tree too. This complementary progression system operates alongside the standard leveling system, allowing you to accumulate Specialization points instead of traditional skill points. These points can be used to unlock various passive benefits and powerful skills, effectively transforming you into an overpowered Vault Hunter.

In simpler terms, you have the option to restructure your Specialized tree at any of the respec (short for “respecialization”) stations located within the main towns of each area. Keep in mind that this process costs approximately 5,000 Eridium.

Firmware Transfer

In the latest addition to the Borderlands series, known as Borderlands 4, gear sets have been introduced. With the Firmware Transfer feature, you can move the effect of one item onto another, essentially swapping their properties. Completing the campaign will grant you access to one of Zane’s machines located in various NPC towns, where you can perform all your firmware transfers.

Equipment equipped with the same firmware type offers players potent effects, allowing them to leverage multiple items for maximum impact in the game’s latter stages. Achieving a matching set effect or two becomes vital for success in the final stages of play.

When transferring firmware, the donor weapon will get destroyed in the process.

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2025-09-11 22:50