How to Get More SDU Tokens in Borderlands 4: Complete Guide

In the loot-filled world of Borderlands 4, having enough space to carry all your weapons and ammo is crucial for survival. SDU (Storage Deck Upgrade) tokens are the key to expanding your carrying capacity, allowing you to upgrade your backpack, bank, lost loot system, and ammo reserves. This comprehensive guide will walk you through all the ways to obtain SDU tokens in Borderlands 4, ensuring you never have to leave valuable loot behind again.

Understanding SDU Tokens in Borderlands 4

SDU tokens are special currency points in Borderlands 4 that you use to unlock additional slots in various storage systems. Unlike regular currency, these tokens are specifically dedicated to expanding your capacity limits, making them incredibly valuable for any serious Vault Hunter.

What SDU Tokens Upgrade

With SDU tokens, you can increase the capacity of several essential systems:

Backpack Space: Carry more weapons, shields, and grenade mods
Bank Storage: Store additional items for later use
Lost Loot System: Increase the capacity of your lost loot collection
Ammo Capacity: Carry more ammunition for each weapon type

Since Borderlands 4 is all about collecting better loot, having more space and ammo directly translates to greater power and flexibility in combat. The more SDU tokens you collect, the more prepared you'll be for any challenge the game throws at you.

Important Note About Difficulty

Before diving into the specific methods for obtaining SDU tokens, it's important to note that the difficulty level does not affect the quantity of tokens you receive from completing these activities. Whether you're playing on Normal mode or the highest difficulty setting, you'll receive the same number of tokens for each activity, making it easier to plan your token collection strategy.

All SDU Token Sources in Borderlands 4

There are numerous ways to earn SDU tokens throughout Borderlands 4, each offering different rewards and requiring different levels of effort. Below is a complete list of all the collectibles and activities that reward you with SDU tokens, along with how many tokens each provides.

Evocarium Puzzles: 15 SDU Tokens

Evocarium puzzles are brain-teasing challenges that reward you with a substantial number of SDU tokens. To complete an Evocarium puzzle:

Interact with the main Evocarium structure, which will highlight three locations
Search around the indicated areas to find three glowing orbs
Collect all three orbs to complete the puzzle

Successfully completing an Evocarium puzzle will reward you with 15 SDU tokens. These puzzles require some exploration and problem-solving skills but offer a generous reward for your efforts.

Lost Capsules: 15 SDU Tokens

Lost capsules are hidden items that you need to find and return to specific locations. This activity involves:

Locating a lost capsule in the game world
Transporting the capsule to a designated location, usually a nearby base or Safehouse
Depositing the capsule in the designated machine

When you successfully deposit a lost capsule, you'll receive 15 SDU tokens plus a bunch of guns that drop from the machine. This makes lost capsules particularly valuable, offering both tokens and potential weapon upgrades.

Propaganda Speakers: 20 SDU Tokens

Propaganda speaker activities are tower-defense style missions that test your combat skills. These activities are marked with a speaker icon on the map and involve:

Locating the propaganda speaker structure
Hacking the structure to begin the activity
Surviving waves of enemies while a gauge fills up
Protecting the structure until the gauge reaches 100%

Successfully defending the propaganda speaker will reward you with 20 SDU tokens, making these activities among the most lucrative sources of SDU tokens in the game. Be prepared for intense combat, as these missions can be quite challenging.

Abandoned Auger Mines: 40 SDU Tokens

Abandoned Auger mines are dangerous but rewarding locations that offer a substantial number of SDU tokens. These mines are similar to bunkers but feature different enemy types, including manglers, and environmental hazards like poisonous lakes.

To complete an Abandoned Auger mine activity:

Locate the abandoned mine on the map
Navigate through the mine, avoiding environmental threats
Defeat all enemies within the mine
Complete the mine objective

Successfully clearing an Abandoned Auger mine will reward you with 40 SDU tokens, making these activities one of the best sources for SDU tokens in the game. The high reward reflects the increased difficulty and danger involved.

Ancient Crawlers: 40 SDU Tokens

Ancient Crawlers are massive abandoned vehicles scattered throughout Kairos. These towering structures offer significant rewards but require combat prowess to access.

To obtain SDU tokens from an Ancient Crawler:

Locate an Ancient Crawler in the game world
Fight through waves of enemies to reach the top
Power up the crawler's systems once you reach the top
Collect the vehicle kit that appears

Successfully powering up an Ancient Crawler and obtaining its vehicle kit will reward you with 40 SDU tokens. Like Abandoned Auger Mines, these activities offer substantial rewards but require significant combat effort to complete.

Vault Symbols: 5 SDU Tokens

Vault symbols are glowing collectibles hidden on walls throughout the world of Kairos. These are among the easiest SDU token sources to collect:

Explore the game world thoroughly
Look for glowing Vault symbols on walls and structures
Interact with any Vault symbols you find

Each Vault symbol you interact with will reward you with 5 SDU tokens. While the individual reward is small compared to other activities, Vault symbols are plentiful and easy to collect, making them a reliable source of tokens throughout your playthrough.

Auger Shrines: 10 SDU Tokens

Auger shrines are points of interest that require a simple interaction to claim your reward. To complete an Auger shrine activity:

Find an Auger shrine in the game world
Interact with the shrine to expose a purple shrine from a machine
Hit the exposed shrine with a melee attack

Successfully activating an Auger shrine will reward you with 10 SDU tokens plus some additional guns. These shrines are relatively simple to complete and make for good token farming when you encounter them.

Electi Safes: 10 SDU Tokens

Electi safes are small abandoned safes scattered throughout various locations. These are marked on the map and offer a straightforward way to earn SDU tokens:

Locate an Electi safe using your map
Approach the safe
Interact with or kick the safe to open it

Opening an Electi safe will reward you with 10 SDU tokens. These are among the simplest activities to complete, requiring minimal effort for a decent token reward.

Safehouses and Silos

Safehouses and Silos are locations you can capture and control throughout the game world. While the article doesn't specify the exact number of SDU tokens rewarded, these locations are mentioned as sources of tokens. Capturing these locations likely involves:

Locating a Safehouse or Silo
Clearing the area of enemies
Securing the location for your faction

The exact token reward may vary, but these locations are worth capturing as part of your overall token collection strategy.

Order Bunkers

Order bunkers are fortified locations that you can clear out to earn SDU tokens. While the article doesn't specify the exact token count, these bunkers are mentioned as token sources. Clearing an Order bunker typically involves:

Locating an Order bunker
Fighting through fortified defenses and enemies
Completing the bunker objective

Like Safehouses and Silos, the exact token reward isn't specified, but these locations are worth including in your token farming route.

Ripper Drill Sites

Ripper drill sites are industrial locations controlled by enemy forces. These sites are mentioned as sources of SDU tokens, though the exact reward isn't specified. To complete a Ripper drill site:

Locate a Ripper drill site
Clear the area of enemy forces
Secure the drill site

While the exact token count isn't provided, these sites are worth investigating as part of your overall SDU token collection strategy.

Strategies for Efficient SDU Token Collection

Now that you know all the sources of SDU tokens in Borderlands 4, let's discuss some strategies for collecting them efficiently:

Prioritize High-Reward Activities

Focus your efforts on activities that offer the most SDU tokens per time invested. Abandoned Auger Mines and Ancient Crawlers both offer 40 tokens each, making them the most lucrative activities. If you're looking to maximize your token count quickly, prioritize these activities.

Balance Token Collection with Main Story Progression

While it's tempting to chase every SDU token immediately, consider balancing your token collection with main story progression. Many areas will become more accessible as you progress through the story and unlock new fast travel points.

Explore Thoroughly

Take time to explore each area thoroughly before moving on. Vault symbols, Auger shrines, and Electi safes are often hidden in out-of-the-way locations. A thorough exploration approach will ensure you don't miss any easy token opportunities.

Group Similar Activities

Plan your routes to group similar activities together. For example, if you're heading to an area with an Abandoned Auger mine, check if there are any nearby Vault symbols or Auger shrines you can collect during the same trip.

Keep Track of Completed Activities

Use your map and quest log to keep track of which activities you've completed. This will help you avoid wasting time revisiting locations you've already cleared for tokens.

Consider Co-op Play

If you're playing in co-op mode, coordinate with your teammates to efficiently clear activities. Some of the more challenging token sources, like Propaganda speakers and Ancient Crawlers, can be much easier with teammates helping you.

When to Spend Your SDU Tokens

Collecting SDU tokens is only half the battle—knowing when and where to spend them is equally important. Here are some recommendations for prioritizing your SDU upgrades:

Early Game Priorities

In the early game, focus on upgrading your backpack space first. Having more inventory slots allows you to carry more weapons and gear, which is crucial when you're still finding your preferred playstyle and weapon types.

Mid-Game Strategy

As you progress into the mid-game, start investing in ammo capacity upgrades, particularly for your favorite weapon types. Running out of ammo during tough fights can be frustrating, so having larger ammo reserves will improve your combat effectiveness.

End-Game Considerations

In the end-game, focus on maxing out your bank storage and lost loot system. As you collect more legendary and rare items, having additional bank space becomes invaluable for storing alternate builds and special weapons.

Balanced Approach

While these recommendations provide a general guideline, feel free to adjust based on your personal playstyle. If you find yourself constantly running out of a specific ammo type, prioritize those upgrades earlier. If you're a hoarder who likes to collect multiple versions of weapons, invest in bank and backpack space sooner.

Conclusion: Maximize Your Borderlands 4 Experience

SDU tokens are a crucial resource in Borderlands 4, directly impacting your ability to carry more weapons and ammo. By understanding all the sources of tokens and implementing efficient collection strategies, you can ensure your Vault Hunter is always prepared for any challenge.

Remember that the difficulty level doesn't affect token rewards, so you can collect them at your own pace regardless of your chosen difficulty setting. Whether you prefer the intense combat of Propaganda speakers and Ancient Crawlers or the relaxed exploration of Vault symbols and Auger shrines, there's a token collection method suited to every playstyle.

Take the time to explore Kairos thoroughly, complete the various activities, and collect as many SDU tokens as possible. Your future self will thank you when you're carrying a full arsenal of legendary weapons and never have to worry about running out of ammo during the most critical moments of your adventure.

Happy hunting, Vault Hunter!

What's your favorite method for collecting SDU tokens in Borderlands 4? Have you discovered any efficient farming routes or strategies? Share your tips and experiences in the comments below!

Tags: Borderlands 4, SDU Tokens, Storage Deck Upgrade, Guide, Backpack Space, Ammo Capacity, Bank Storage, Lost Loot, Token Farming, Collectibles, Activities, Upgrades