WHERE & HOW TO FARM Where to farm Iwajira’s hidden cave in Serenity’s Waste.
Use Iwajira when your immediate goal is to stock currency for a planned spend. The boss in Serenity’s Waste can drop Moonstones and also offers unrelated gear chances. Counts vary, so track the amount you actually collect instead of planning around a fixed yield. The route is available without optional DLC.
Before you go Reach Serenity’s Waste and discover the cave entrance. Bring weapons and equipment appropriate for the encounter. Know which upgrade, chest, or Grinder use you are saving toward. Travel to Serenity’s Waste and enter the hidden cave route. Defeat Iwajira using your boss damage setup. Search the fight area for Moonstones and collect them. Pick up useful equipment, including any launcher drop worth evaluating. Check your Moonstone total against the cost of your intended use in-game. Save and quit, reload, and travel back to the cave if you still need currency. Repeat the kill and collection loop until your reserve meets the goal. Farming tips Use an easier mode if available and appropriate when faster kills matter more than difficulty. Keep a reserve for a planned Moonstone Grind or upgrade rather than spending every stone as soon as you return to Concordia. Repeat, collect and use Repeatable through save-and-quit and reload. Moonstone amounts are not guaranteed per attempt; stop based on your collected balance.
Common mistakes Budgeting around an exact amount per kill can leave you short; verify the currency total after each run. Spending Moonstones on low-priority random grinds can delay an upgrade; decide your target spend first. Ignoring gear drops misses the boss’s additional loot potential; inspect equipment before resetting. When to stop or switch Stop once your in-game balance covers the intended upgrade, chest, or Grind with any reserve you want to keep.
Sources & fact checks REWARD DETAILS & CONDITIONS Sources & rewards All source types Farming route Farming priority Name A–Z Drop chance
Farming route Iwajira’s hidden cave in Serenity’s Waste.
Reach Serenity’s Waste and discover the cave entrance. Bring weapons and equipment appropriate for the encounter. Know which upgrade, chest, or Grinder use you are saving toward. Rate not listed
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