Ferrium is where Endfield stops being chill and starts asking if you actually planned anything. If you're still hand-mining and jogging back to base, you'll burn out fast. I'd rather push AIC tasks early, sprint Mining III, and get the Electric Mining Rig Mk II online before anything else. If you're short on time or just want to skip the slow part, I've seen people pair that grind with Arknights endfield boosting for sale so their factory plan doesn't stall out mid-upgrade.
Valley IV: Build the Ferrium tap
Once Mk II is unlocked, go straight to Valley IV and look for the six-node Ferrium pocket. It's the kind of spot you build your whole week around. Drop rigs on all six nodes, then run power in from your hub. Yeah, the pylons and cables are fiddly. You'll probably reroute twice because a slope eats your connection. Still, when those miners are humming nonstop, you stop thinking in "runs" and start thinking in "throughput," which is the point.
Moving ore without waiting around
Getting the ore out is the real pain. The regional depot plus loaders setup works, but it's slow when you need plates and parts right now. My go-to trick is dumb but effective: use your backpack as the transfer line. Fill up, fast-travel between Dijiang and Wuling, dump, repeat. It's basically instant compared to watching depots dribble stacks over one at a time. I'll still keep the automated route running in the background for baseline supply, but manual hauling is what gets you through those "one more upgrade" moments.
Wuling priorities and power insurance
Wuling doesn't give you much Ferrium locally, so treat every shipment like it matters. I route incoming ore through splitters first, then feed only what's needed into Jincao Drinks and the core components line. Anything extra gets peeled off into storage so belts don't jam. Power is the other silent killer. If your grid browns out, everything backs up at once. I like lining up eight depot unloaders to pull Amethyst and battery parts as fast as the cap allows, then building a dedicated backup battery array. It's not fancy, it just saves you from that awful "why is nothing moving" moment after you add one more machine.
Regional levels and smart shortcuts
Keep nudging your Regional Development Levels whenever you're nearby. Side missions, recycling station upgrades, little errands you'd normally ignore—those add up into passive Aero Barrels and, more importantly, premium currency. And if you're the type who'd rather spend your time designing the factory than babysitting grinds, U4GM works as a professional buy game currency or items in U4GM platform with a straightforward process, and you can buy u4gm Arknights endfield boosting to keep your progression moving while you focus on building the setup you actually want.
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