Eridium is the rare mineral everyone is hunting for in Borderlands 2. You need Eridium to buy upgrades and some of the more powerful weapons in the game. There are several ways you can farm Eridium in Borderlands 2, but we will be listing few of the most effective methods to farm Eridium early in the game.
How To Farm Eridium By Playing Slot Machines
After completing Prologue and unlocking Sanctuary, look for the two slot machines at Mad Moxxi’s bar. You can play these slot machines to farm Eridium. The rarity of items you win through slot machines depends on your progress in the game.
It is also more expensive to play the slots later in the game but if you have farmed enough money through different exploits, you can play these slots machines as long as you want to accumulate enough Eridium for the rest of your adventure.
Once you have accumulated enough Eridium, you can go to Borderlands 2’s Black Market dealer and upgrade your Ammo Capacity and Backpack Slots.
It is recommended that you upgrade your backpack slots first as it will allow you to carry more loot. Do note how much Eridium you need for different Black Market Expansions:
Level 1: 4 Eridium
Level 2: 8 Eridium
Level 3: 12 Eridium
Level 4: 16 Eridium
Level MAX: 20 Eridium
Furthermore, you can complete “Whaddaya Buyin?” challenge for another 166 Badass Rank by purchasing 20 upgrades using Eridium. For a more help on Badass Tokens, read our Tokens Farming Guide.
How To Farm Eridium At Bloodshot Stronghold
While playing slot machines is a generally accepted way to farm Eridium early in the game, but it does require a bit of patience at your end. If you can’t wait for your luck to shin, you can do it in a more entertaining way by killing a unique mob outside Bloodshoot Stronghold.
Travel to Three Horns Valley and go to the Bloodshoot Stronghold, north of quick-travel terminal. Look for a mob named ‘Bad Maw’.
Kill him outside the area. After killing him, save and quit the game. Continue the game and go to the same area again to kill him. Rinse and repeat until you have accumulated enough Eridium.
Don’t forget to share any other ways to farm Eridium in Borderlands 2 by commenting below!