Target Cluster, the relic-upgrade material listed for Lost Dungeons maps, instead of guessing at generic map rewards.
PC / Global, current live build
WHERE & HOW TO FARM
Where to farm
Chaos Expedition map selection: Lost Dungeons region maps, including Unholy Catacombs, Crumbled Bulwark, Buried Bastille, and Molten Citadel; verify the region label in game.
Clusters are the relic-upgrade material associated with Lost Dungeons maps. Use the Expedition map list to target that region when you need Clusters for a relic upgrade. The Lost Dungeons region includes maps such as Unholy Catacombs, Crumbled Bulwark, Buried Bastille, Molten Citadel, and Embermount Volcano; confirm the current map and material information shown in your interface before entering. This is a region-based material route, not a guarantee that every chest gives a fixed number or quality. Choose the highest tier you can clear consistently, inspect its enemies and mutators, and complete the map to collect the material drops. Check your Materials inventory after the run and compare the Cluster count with the upgrade you planned. If the map selection or reward screen does not identify a Lost Dungeons map, do not infer the material from a similar name; choose a confirmed region map or postpone the run. Repeat clears while the material is needed, then stop once the relic upgrade is funded. This target differs from shard-pack farming: it is aimed at the relic crafting material, not random shard rolls.
Complete the Campaign and unlock Chaos Expeditions.
Have access to at least one Lost Dungeons map at a tier you can clear.
Identify the relic upgrade that requires Clusters and leave inventory room for materials.
Open the Chaos Expedition map list and look for a map labeled as part of Lost Dungeons.
Confirm the region on the selected map; the crafting-material listing associates Clusters with Lost Dungeons.
Read the map’s enemy schedule and mutators, then select a Chaos tier you can complete reliably.
Build defenses for the displayed lanes and complete every wave without losing the map objective.
Claim the victory reward and inspect the Materials inventory for Cluster drops.
Repeat on a confirmed Lost Dungeons map while Clusters remain part of your upgrade plan.
Spend the collected Clusters on the planned relic upgrade and stop when you have enough or the region maps are no longer efficient for your build.
Farming tips
The material listing associates Clusters with Lost Dungeons; it does not establish an exact quantity per clear.
Use the map’s in-game region label before investing in a run.
Embermount Volcano is also listed with Clusters, so it is another named option if available in your Expedition selection.
Repeat, collect and use
Repeat clears on available Lost Dungeons maps while you need Clusters; check the map region each time rather than assuming every Expedition gives them.
Common mistakes
Confusing Clusters with other regional materials such as Rings, Quills, or Ingots.
Assuming the Chaos tier guarantees a particular quantity or quality of Cluster; no fixed amount is claimed here.
Calling this a shard farm; shard packs are a separate victory reward system.
Selecting a map based only on its name without verifying its region in the interface.
When to stop or switch
Stop once you have the Clusters required for the intended relic upgrade or if you cannot clear the available Lost Dungeons map reliably.
Chaos Expedition map selection: Lost Dungeons region maps, including Unholy Catacombs, Crumbled Bulwark, Buried Bastille, and Molten Citadel; verify the region label in game.
Complete the Campaign and unlock Chaos Expeditions.
Have access to at least one Lost Dungeons map at a tier you can clear.
Identify the relic upgrade that requires Clusters and leave inventory room for materials.
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Related guides
More guides for gathering materials and making progress.
