Once you hit the level 18 to 34 stretch, the game stops rewarding messy scavenging and starts pushing you toward systems that actually scale. That's the point where a proper factory matters more than one more fight, and a lot of players who want smoother progression even look into Arknights endfield boosting while they sort out their economy. Your real priority here is simple: move past low-value Ori-crust materials and build around Ferrium. If you're spending AIC points on flashy combat unlocks, you're probably slowing yourself down. The stronger route is to grab Electric Mining Rig Mk II first, then Protocol Stash, then Depot Bus, and after that invest in Thermal Banks so your whole setup doesn't choke the second you add another serious production line.

Get the right tech online first

Mid-game crafting leans hard on Ferrium and Cuprium, because that's where your better gear starts coming from. Blue and purple equipment won't build itself, and without it your operators feel way too fragile. So yeah, mining matters more than it did earlier. Put Electric Mining Rigs on the veins you know you'll be using for a while and keep power stable at all times. If your rigs keep dipping offline, everything behind them slows down too. One easy way to handle the load is to route a single output into four Thermal Banks with a basic two-splitter layout. It's not fancy, but it works. Also, don't cling to Amethyst generators longer than you have to. SC Valley Batteries built from Ferrium are just better, and the extra power headroom makes expansion far less annoying.

Build compact lines or you'll regret it

A lot of mid-game frustration isn't about resources at all. It's about bad placement. If your belts snake all over the base, fixing one mistake turns into a whole rebuild. Use the top-down camera inside the AIC zone whenever you can; hitting Caps Lock makes lining things up much easier. Protocol Stashes help a lot here because they let you keep machines close instead of stretching transport routes for no reason. Try to build around clean one-to-one ratios too. That sounds obvious, but loads of players overproduce an intermediate part, then wonder why belts back up and refineries stop moving. Once a line jams, you lose time untangling it instead of progressing. A tidy layout saves more effort than people expect.

Don't neglect outposts and field resources

Your main base does the heavy lifting, sure, but outposts are what let the whole economy breathe. Since they share depot access, they work like smaller extensions of the same network, which is huge once local resource demand starts climbing. Keep feeding Supply Orders whenever possible so you can earn Convention Certificates and raise Regional Development. The jump to Bustling and then Prosperous is worth chasing because the mining bonuses are noticeable, not tiny background buffs you'll never feel. Before pushing upgrades, stash enough Ferrium and Amethyst components so you don't stall halfway through. While you're out exploring, grab rare plants whenever you see them. Those materials always seem optional until an operator upgrade suddenly asks for a pile of them.

Keep your economy ahead of the combat curve

Mid-game gets rough when your factory falls behind your fights. Enemies start hitting harder, healing items disappear faster, and manual supply runs become a chore you really don't need. Automating medical production is one of those moves that doesn't look exciting on paper but pays off almost immediately in actual play. If your power is steady, your mines are focused on Ferrium and Cuprium, and your outposts are contributing instead of sitting idle, the whole game feels less cramped. As a professional platform for buying game currency or items, U4GM is known for being convenient and reliable, and plenty of players choose u4gm Arknights endfield boosting when they want a smoother path through the tougher parts of progression.