Start with the deposit and its extraction method

A mining building is useful only when it can reach resources your colony actually needs. This Wall World Strategy mining guide starts with the early playtest approach: inspect nearby deposits, position an extraction post to cover them, connect its foundations, and assign labor. Keep an eye on remaining deposits so your next expansion can begin before the current supply disappears.

The detailed playtest examples below come from player experience in SplatterCat's and Raptor's early commentary. The official Wall World Strategy Steam description confirms extraction and exploration, but later developer updates are essential when using those older examples.

Apply the right version's construction and mining rules

The developers' May 12, 2026 playtest results announced a complete mining overhaul and a reworked foundation system for the upcoming demo. The June 10 demo announcement then described a simpler building workflow: construct buildings and connect them with roads. The older manual-foundation examples below describe the earlier playtest, not a requirement established for that revised demo.

The June 16 demo update further fixed miners to collect mined resources automatically when available, and addressed miners moving around empty excavation points. If your question concerns resources left inside a mine, check that version history before following a video made before the overhaul. Raptor's account says saving was unavailable, placing its demonstrated build before the April 29 save-system update.

Position the extraction post before committing to a route

In the playtest account, extraction posts collect nearby metal, biomass, and suitable mineral deposits. The player checks a deposit's indicated extraction method before placing a post. Follow that principle: do not assume every resource formation uses the same structure just because it looks similar.

Coverage also matters. The commentary describes posts reaching multiple deposits and another location where the available coverage is too small. Preview the placement against the deposits you want to exploit before spending metal on a long approach.

For a new site, plan the whole construction:

  • Foundations sufficient for the post's footprint.
  • Walkways and ladders linking it to the colony.
  • Coverage of the intended deposits.
  • Available labor when construction finishes.

The player repeatedly spends metal extending routes toward fresh deposits. A distant cluster may offer more material, but its access cost still comes out of your present reserves.

Assign people and recognize the working day

Construction and production are separate steps. In the reported playtest, the player opens extraction posts and assigns labor after placement. The account also shows workers being accepted by an extraction post, so do not assume a building must use a specialist solely because its name involves extraction. Check the staffing choices your version provides.

Nighttime is another important distinction. The playtest explains that production buildings and mining outposts stop for rest; the commentator reports production resuming at 6 a.m. A quiet post during that period is not automatically broken. Treat that time as a detail of the recorded build, and inspect your own schedule before rebuilding infrastructure unnecessarily.

Replace exhausted sites and develop the Wall's interior

Deposits are finite in the player experience. One post loses access to biomass while metal remains, and later metal deposits also run out. Check individual resources rather than judging a site by whether its building still exists.

Move available labor toward productive sites as deposits empty. The commentator dismantles exhausted extraction structures to reclaim space and some resources, but the account does not establish a universal refund amount. Check the game's demolition information before relying on a particular return.

SplatterCat's playtest later introduces excavation inside the Wall. Raptor's early player experience shows placing a digging post in the interior and assigning diggers. It also distinguishes surface gathering from breaches in the Wall: the player researches an extractor described as allowing a large miner on those breaches. These are demonstrated early research and staffing distinctions, rather than a universal tunnel layout for the overhauled mining system.

FAQ

Why is an extraction post producing nothing?

Check whether its covered deposit is exhausted, whether labor is assigned, and whether the colony is in its resting period. These are distinct situations in the early playtest account.

Can one post collect more than one resource?

Yes, the reported early playtest includes posts covering multiple deposits. Placement coverage determines what that particular post can reach.

Do I need miners for every extraction post?

The player experience includes assigning ordinary workers to an extraction post. Inspect the building's permitted labor in your version rather than reserving specialists by assumption.

Where do I get resources after nearby deposits run out?

The playtest account expands to more distant surface deposits and later introduces the Wall's interior. Plan the route and construction costs before existing supplies are exhausted.