Project Zomboid Survival Guide: Drinking Water, Food, Injuries and Your Base | gemelog

Edition: PC Steam base game (app 108600), a new solo game without mods. Based on Stable 42.21 and standard Apocalypse rules. Rising is identified separately as a beginner practice example; differences in town, traits, Sandbox and MP settings are kept distinct.

Verification scope: The official “Stable Build: 42.21” label and the September 28 stable-release announcement were checked on 2026-10-04. This is separate from Build 41 (legacy41) and the earlier Build 42 Unstable branch. Basic processing quantities were compared with public B42 game data and 42.20.4 material, and the 42.21 change announcement was checked. Not every recipe has been verified in a running 42.21 game.

Sources checked: 2026-10-04

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Identify what is missing before searching for supplies

Moodles are a starting point for spotting problems. Do not identify a cause from a single pain or sickness icon; review Health, food eaten, water drunk and recent combat or tasks. These explanations concern in-game mechanics.

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Identify what is missing before searching for supplies: 7 entries
In-game symptom	Required item/facility	Action order	Recovery/operation check	Settings differences
Bleeding	Clean bandage/ripped sheets	Secure safety → Health → right-click the body part → treat	Bandage shown on the body part and change in bleeding	Progress differs by wound location and type.
Thirsty	Drinkable water and a container	Contents/quality → drink → replenish the reserve	Thirst and remaining water	Traits and temperature affect consumption.
Hungry	Edible food	Freshness/raw-food warning → required heating → eat	Hunger and food condition	Food abundance/spoilage settings affect this.
Out of breath	A safe place to rest	Stop fighting/running → rest	Improvement in Endurance	Skills and exertion differ.
Sleepy	A safe bed	Check the room and entrances → sleep	Tiredness and surroundings after waking	MP sleep depends on server settings.
Persistent pain	Health and supplies appropriate to the situation	Check wounds and muscle strain → stop the exertion	Changes in body-part condition and pain	Muscle-strain multiplier and traits affect this.
Feeling sick	Record of water/food/wounds	Separate possible causes; stop consuming unsafe water or ingredients.	Monitor changes in condition.	Distinguish infection rules and mods.

Check obtaining water and making it drinkable separately

If taps work initially, filling both carried containers and spare containers at home gives you more options when the supply stops. Finding a container does not guarantee its contents or water quality are safe.

Prepare an empty container, right-click a usable nearby water source and select the container under Fill/the refill option.
After filling, select the container and read its contents, amount remaining and contamination display. Check quality before drinking.
Do not reserve rain or river water for drinking untreated. Put it into a heat-compatible container, such as a cooking pot.
Heat it using compatible equipment and confirm that the contamination label disappears before using it for drinking. Supervise heating and manage the fire or power afterward.
Keep purified and untreated water in separate containers and locations. Recheck quality after mixing in other water.

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Check obtaining water and making it drinkable separately: 4 entries
Water-supply situation	First thing to check	Next preparation	How to confirm success
Taps work	The source’s Fill option and containers	Fill separate travel and storage containers.	Amount left in each container
Water has shut off	Water remaining in other fixtures and existing reserves	Collect what remains and prepare an ongoing source.	Do not assume taps will work forever.
A rain collector is installed	Outdoor classification, roof and actual rainfall	Collect rain somewhere without a roof.	Collected amount and contamination display
Using a plumbed tap	Incoming source and water quality at the tap	Check quality and purify if needed.	Do not assume plumbing alone makes water safe.

Water and power have separate shutoff settings. Do not plan around a fixed shutoff day. 42.21 adds support for more purification containers, but this does not mean every container works in every oven.

Check eating order and refrigerator operation

Divide food at home into what to eat now, what to keep chilled and unopened reserves. This example treats farming and livestock as future plans rather than waiting for a harvest to solve initial hunger.

Hover over food to check freshness, raw/cooked state and warnings about unsafe consumption.
Use safely edible perishables first, keeping unopened canned food and similar items for the next outing or after power loss.
If a can will not open, check the tools required in its right-click menu. Obtaining a can opener helps provide more options.
Move food requiring cooking into the cooking equipment’s container and use the heat source. Confirm the cooked label, remove it and do not leave it until it burns.
Move food for storage into the correct fridge/freezer container, then check power and food condition. After power loss, reassess remaining perishables and switch to shelf-stable reserves.

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Check eating order and refrigerator operation: 5 entries
Food/state	Display to check	Preparation example	Assumption to avoid
Perishables	Freshness stage	Eat what you need before it starts spoiling.	Refrigeration preserves it indefinitely.
Unopened canned food	Whether opened and which tools can be used	Open only what you intend to eat.	Opened food behaves like unopened food.
Food with a raw-consumption warning	Cooking state	Use equipment that can heat it safely.	Judging edibility from appearance
Cooking	Cooked/burnt label	Supervise and remove it at the right stage.	Leaving it unattended while exploring elsewhere
Refrigerator after power loss	Power and food temperature/freshness	Change plans to preserved food and what you can cook.	Everything instantly spoils when the lights go out / it stays chilled afterward.

42.21 updates gradual warming of refrigerators and freezers after power loss and cooling applied to bags inside them. Storage time varies with food, settings and temperature; no fixed number of days is given here.

Do not confuse where to use a bandage or types of infection

Picking up a first aid kit does not treat a wound. Inspect its supplies and apply them to the injured part in Health. Stopping bleeding with a bandage is also different from solving every underlying cause.

Get away from enemies or fire and secure safety. In solo, pause if needed and use H to inspect each body part.
Prepare a clean bandage or fabric usable as an improvised bandage, then right-click the bleeding body part to apply it.
After treatment, recheck the body-part display, bleeding and overall condition. Do not stop after one treatment if there are multiple wounds.
Prepare a replacement before changing a dirty bandage, and change it somewhere safe. Do not ignore bleeding while the wound is exposed.
Do not confuse a wound-infection label with zombie infection. For zombie bites, scratches and lacerations, do not assume ordinary wound care eliminates the infection risk.

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Do not confuse where to use a bandage or types of infection: 6 entries
Observed state	Where to look	What to do	Limits of treatment
Bleeding	Injured body part in Health	Apply an available bandage to that part.	Equipping a first aid kit alone does not provide treatment.
Dirty bandage	Body part and replacement supplies	Prepare supplies and replace it somewhere safe.	Also recheck whether the wound has closed.
Wound with glass embedded	Foreign object/deep wound on the body part	Read the available treatment and required tools.	Covering the surface does not mean a foreign object has been removed.
Ordinary wound infection	Infection label in Health	Use clean supplies and the required in-game treatment.	This is not the same display as Knox infection.
Zombie-inflicted wound	Wound type and infection settings	Treat bleeding, then monitor settings and changes in condition.	Bandages/disinfectant do not reverse the normal lethal infection.
Muscle strain/pain	Arm, leg and other body-part condition	Stop heavy carrying or repeated fighting and rest.	Supplies for stopping bleeding do not also cure muscle strain.

Under normal Blood and Saliva settings, zombie bites transmit Knox infection, and scratches and lacerations can also transmit it. No fixed probability or time of death is given here. Sandbox settings changing transmission or lethality, and treatment mods, are separate conditions.

Choose a restful base by visibility, entrances and exits

Rather than fortifying a large house immediately, using one house where you can organize food and water, inspect outdoors and enter or leave makes shortages easier to identify. This is an example of selection criteria, not a claim that a particular house is always safe.

Check the surroundings and interior, including an escape route other than the way you entered.
Close window curtains. For windows without them, prepare sheets and use the appropriate hang action.
Choose locations for the bed and everyday supplies without blocking entrances or passageways with belongings or new furniture.
Choose a door or window to reinforce and prepare its tools and materials. Recheck the escape route before blocking every exit.
Before sleeping, check fires, cooking equipment, entrances, nearby sounds and your condition. Inspect outside again after waking.

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Choose a restful base by visibility, entrances and exits: 5 entries
What the base needs	State to check	Preparation example	Version differences
Window screening	Whether it is closed after hanging	Existing curtains or sheets	A sight barrier, separate from a barricade with durability
Entrances/exits	Whether you can open and pass through, and whether enemies are behind them	Leave at least a usable escape route.	Enemy attacks on buildings depend on settings.
Bed	Whether the resting place is reachable	Secure the room before drowsiness becomes severe.	Not the same as MP sleep settings
Everyday storage	Locations of water, food and supplies	Separate drinking water, untreated water, preserved food and tools.	In shared MP, also check who is carrying them.
Alternative route	Whether the landing point or way back is safe	Upstairs, also check installed escape routes such as ropes.	Ropes can be damaged; do not treat one as the only infallible safety measure.

Curtains and planks do not silence noise. Watch alarms and enemy movement outside when deciding whether to stay in the house or leave.

Equipment alone does not solve power and water shutoffs

Finding generators or collectors, placing them and making them usable are separate stages. Secure tonight’s food and water first, then prepare facilities one stage at a time.

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Equipment alone does not solve power and water shutoffs: 5 entries
What stopped working	Display/state to check	Required preparation and action	Next check
Tap water	Whether you can refill and how much is stored	Use spare containers and prepare collection/another source and purification.	Quality and amount of water intended for drinking
Rain collection	Whether it is outdoors and rain has fallen	Meet the skill and material requirements, build it and collect rain.	Whether water actually entered it
Refrigerator	Power and food condition	Switch to preserved food and plan a power source if needed.	Whether cooling has resumed and food has already spoiled
Generator	Connection option, fuel, Condition and operation	Keep it out of living rooms; obtain operating knowledge and fuel, then place → connect → refuel → start.	Generator Info and power to the intended appliances
Generator maintenance	Remaining fuel and declining condition	Stop it, refuel and perform necessary maintenance.	Operation after restarting and nearby noise

Generator exhaust indoors harms your condition. Do not assume opening one window makes it safe. Fuel consumption, supply range and detailed tool requirements also depend on type and settings; check the current interface.

Use the same checks before leaving and after returning

Loot quantity alone does not determine whether an outing succeeded. If you used up food and water and drowsiness or pain has worsened, prioritize recovery over stockpiling next.

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Use the same checks before leaving and after returning: 4 entries
When to check	What to inspect	If supplies are insufficient
Before leaving	Water quality, drinking supply and edible food	Make water or food the first objective.
Before leaving	Weapon condition, weight and first aid supplies	Re-equip and put down unnecessary items.
During the outing	Endurance, drowsiness and Health	Turn back while you still have enough reserve for the return.
After returning	Entrances, fire, wounds and preserved food	Finish treatment and storage before lengthy crafting or reading.

This is not a timetable promising a week of survival or permanent self-sufficiency. Shorten your plans according to weather, enemy movement, initial loot and settings.

Frequently asked questions

Can I drink rainwater as soon as I collect it?

Check the contamination label and keep untreated rainwater separate from drinking reserves. Heat it in a compatible container with a suitable heat source, then confirm the quality display has changed before using it.

Do water and electricity shut off on the same day?

They are separate settings. Do not assume the same day or a fixed day number; check your mode or Sandbox settings and prepare water and food reserves separately.

I have a first aid kit, but my health keeps falling.

The kit is a container. Check the bleeding body part in Health and treat it with the supplies inside. Hunger, thirst and illness can also cause problems, so do not identify the cause from one icon alone.

Does an infected-wound label mean zombification is certain?

Ordinary wound infection and Knox infection are different. Do not equate them from the Health infection label alone. Treating an ordinary wound with bandages or disinfectant also does not necessarily reverse zombie-transmitted infection.

Does all refrigerated food spoil the instant power fails?

42.21 includes gradual warming of fridges and freezers after power loss. Assume neither instant total spoilage nor indefinite storage; use actual freshness to decide eating order and when to switch to preserved food.

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Based on site-wide views, captured July 6, 2026 (previous 28 days plus capture day).