KNOX GUIDE Project Zomboid · Build 42
Verified for Build 42.21.0 · updated 2026-11-11

Project Zomboid Build 42 — towns, bases and the first 30 days

Build 42 rebuilt the map, the crafting system and half the survival loop. Most guides online still describe Build 41. This site covers only what has been re-checked in 42.x — and it ships tools instead of walls of text.

42.21.0 build stamp on every page
3 Build 42 towns mapped
4 working tools
EN / 中文 full bilingual
01

If you only read one thing

Match your situation to a page. No scrolling required.

Your situationGo hereWhy
New run, need a safe first baseEcho CreekFewest zombies of the three, one strong building, guaranteed generator
Mid-game, want loot densityEkronOne of everything in a single strip — but bring stealth
Long-term, want water and gunsBrandenburgRiver access plus the west's richest ammo spawns
Not sure whether a spot is worth itBase scorerScore the building before you move your loot into it
Dying in week two, every run30-day planThe failure is almost always scheduling, not skill
02

Build 42 towns

The three towns added in 42.x sit in the far west, stitched together by Kentucky 60. They are the least documented part of the map, and the reason this site exists.

Three towns is not the whole map. Rosewood, Riverside, Muldraugh and West Point still matter and are queued below. If you are on an old save, none of the Build 42 town pages apply to you.
03

Tools that do the thinking

Four small calculators. No account, no tracking, everything runs in your browser. Anything that remembers a setting stores it locally on your device only.

01

Base scorer

Tick what a candidate building actually has. You get a weighted score and a plain verdict — the weights are the ones that decide whether a base survives its first horde.

0
Tick the boxes to score a building.

Weighting is editorial judgement, not game data. It reflects what kills bases in practice: no second floor and no second exit are the two most common causes of a wipe.

02

30-day plan builder

Set your occupation, difficulty and goal. You get a four-week schedule that front-loads what you cannot do later — water storage, a vehicle and a fallback base.

Scheduling advice, not a difficulty guarantee. Water and power shutoff windows are randomised per save — treat week 2 as the deadline.

03

Go-bag checklist

What goes in the bag before you leave the base. Ticks are saved in this browser, so the list survives a refresh.

0 / 0

Built for a two-day run. If you are gone longer than that, the bag is the wrong tool — bring a vehicle.

04

Sandbox settings explainer

Every sandbox slider is a trade-off. Pick a setting and read what it actually changes before you commit a 100-hour save to it.

Defaults differ between Apocalypse, Survivor and Builder presets. Always confirm in the in-game sandbox menu — this page explains the effect, it does not replace the slider.

04

Guide library

Ordered by what actually gets searched, not by what is easy to write. Live pages carry a build stamp; queued pages say so.

LIVE Echo Creek — best base, loot runs and first weekDiner base, Ovo Farms, Guns Unlimited, water and generator access → LIVE Ekron — Fire Department base and the rail crossingThe destroyed train, the college horde, Barrel o' Gun, safe routes → LIVE Brandenburg — best base and ammo runsBoyd Road, Pondview, Memento Ammori, the prison and the blockade →
QUEUEDBest base locations — the full Build 42 hubEvery town on one decision page, scored with the same weights as the tool above
QUEUEDWater and power shutoff — what to do in week 2Storage maths, rain collectors, generator placement and fuel
QUEUEDKnox infection — how it actually worksBite vs scratch vs laceration, and what the queasy moodle really means
QUEUEDBuild 42 crafting overviewThe largest B42 change and the thinnest coverage online
QUEUEDRosewood, Riverside, Muldraugh base guidesExisting demand; most current pages are Build 41 leftovers
05

How pages are verified

The rules this site is built on. They are why numbers here sometimes differ from other wikis.

RuleWhat it means in practice
Build stamp on every pageThe version at the top of a guide is the version it was checked against. If 42.22 changes something, the page is wrong until it is re-checked — and the stamp tells you that.
No invented numbersZombie counts are attributed to their source. Estimates are labelled as estimates.
No coordinates until checkedGrid coordinates are omitted rather than guessed. Directions are given in words instead.
Judgement marked as judgementTool weightings and "this is the better base" calls are editorial. The page says so.
Tool data stays in your browserNo accounts, no analytics on tool input, no server-side storage.

FAQ

Is this site up to date for Build 42?

Yes — every page is checked against the build printed at the top of it. The current stable branch is 42.21.0. If the stamp on a page is older than the build you are running, assume small details may have drifted.

Do Build 41 guides still apply?

Partly. The map, crafting and several survival systems changed enough that old town advice can send you to a building that no longer exists. Mechanics and combat advice generally still hold.

Can I use these guides on an existing save?

Only if that save was started in 42.x. Build 41 saves do not load in 42, so there is no "upgrade your old save" path.

Why are there so few pages?

Because each one has to survive a re-check. A thin but correct library beats a large stale one — the queued list tells you what is coming next.