Your first week has a deadline you cannot see, and it is not zombies. On the default Apocalypse settings the water shuts off on a random day between day 0 and day 30, and the power shuts off on a random day between day 14 and day 30. Both are already counting when you spawn. Every sensible first-week order is built backwards from those two dates, not from a list of items to collect.
That is the whole idea of this page. Below is an ordering framework — what to do first, and the condition that tells you to skip ahead or fall back. It is written for Build 42, checked against 42.20.3 stable (the current stable build as of the 42.20.3 hotfix on 17 August 2026). Where a number comes from a wiki page stamped for an older build, that is called out.
The two clocks, and why they set the order
The water clock is the harsher one because it can fire on day 0. There is no warning: the water shutoff is not announced on the emergency broadcast, and the only tell is that a tap suddenly gives you a limited quantity instead of an endless one. The power clock is gentler — it is announced on the radio via the Automated Emergency Broadcast System up to two days before it happens, and it cannot fire before day 14.
Those two facts alone produce the correct priority:
- If you have not secured water, do that before anything else. It can end your run on day 1.
- If water is secured, spend days 1–13 on the things that stop being possible once the power dies — using powered stoves and freezers, and finding a generator.
- If the radio announces the power shutoff, you have at most two days to move perishable food plans and finish anything that needs mains electricity.
Everything else — weapons, skill books, a car, a farm — is real but has no deadline attached, so it sorts below these three.
Day 1: three things, in this order
First, water containers, not water. Filling your character is trivial; what matters is having vessels. Cooking pots, buckets, mugs and bottles left outdoors collect rainwater, and rain collector barrels do it at scale. This is the single action with the earliest possible deadline, so it goes first even though it feels unproductive.
Second, a bag. Carry capacity is the multiplier on every other trip you make this week. Going back for a second load is not just slow, it is a second exposure.
Third, a melee weapon you can swing all day — not the best weapon you can find. Endurance, not damage, is what fails first for a new character.
Notice what is not on the day 1 list: killing anything. If you are new and dying without an obvious cause, the diagnosis is usually not combat at all — work through the no-visible-wound cause finder before you conclude that you need a better weapon.
Days 2–7: the branching part
From here the order depends on what you found, so this is a decision list rather than a schedule.
- If you have no secure sleeping spot yet → fix that before looting further. Sleep is when the game takes the decision out of your hands.
- If you have water and shelter but no food plan → check whether the power is still on. While it is, a working freezer is free storage. After it dies, that food is on a timer.
- If you have a radio → tune it and leave it on. The AEBS power warning is the only free advance notice the game gives you all game.
- If you are considering a generator → check the gate first. Connecting one requires reading How to Use Generators, being an Electrician, or reaching Electrical 3. Owning the generator is not enough, and finding one is its own problem — the Build 42 map remake invalidated the coordinate lists old guides used, which is why the generator search order is written around building types instead of map coordinates.
- If you got scratched or bitten → stop planning the week and resolve that. A bite is a 100% transmission rate; a laceration is 25% and a scratch is 7%. Symptoms begin within hours and the sequence runs to death at roughly 72 hours. Those figures come from a wiki page stamped for 42.13.1 against 42.20.3 stable, so treat the hour boundaries as approximate — the ordering of the stages is what you act on, not the exact numbers.
- If nothing above applies → then, and only then, loot for upgrades.
What most first-week guides get wrong
They front-load combat skill and back-load logistics. The clocks say the opposite. Nothing about your first seven days is improved by being better at fighting; a great deal of it is decided by whether you own four buckets and a bag on day 1.
The second common error is treating Build 41 advice as current. Build 42 changed enough that a fair amount of remembered first-week routine is now wrong in detail, and which Build 41 knowledge expired is the shortest way to find out whether the habit you are about to rely on still holds.
The third is ignoring the helicopter. On default settings the helicopter event occurs once per game and pulls zombies toward you from a long way off. It is not a first-week certainty, but it is the one scheduled event that can undo a good week in ten minutes, and the correct response — leave, quietly, immediately — is not obvious the first time it happens.
What we could not verify
We did not find a primary source giving the exact probability distribution of the shutoff days inside their windows, so we do not claim one; the windows themselves (0–30 for water, 14–30 for power, Apocalypse default) are what the wiki states. The infection symptom timeline above is reproduced from a page stamped for an older build and is presented as approximate. Nothing on this page asserts a spawn location, a loot table, or a map coordinate, because the Build 42 map remake made that class of claim unreliable.
If you want the shutoff dates in your own sandbox rather than the defaults, the field is measured in hours and reads as days to almost everyone the first time — see the hours-not-days shutoff planner.
Sources
- PZwiki, Metagame — water shutoff random day 0–30 and electricity shutoff random day 14–30 on Apocalypse default; AEBS announces the power shutoff up to two days ahead while the water shutoff is unannounced; generator connection requires the magazine, the Electrician occupation, or Electrical 3; helicopter occurs once per game on default settings. Page stamped 42.13.2
- PZwiki, Knox Infection — transmission probabilities (bite 100%, laceration 25%, scratch 7%) and the staged symptom timeline to death at 72 hours. Page stamped 42.13.1
- Steam news, 42.20.3 STABLE Hotfix Released (17 August 2026) — establishes 42.20.3 as the current stable build this page is written against
