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Lore: the Knox Event

Project Zomboid never tells you its story straight. It hides it in the TV news, the radio, the newspapers on the floor and the notes in empty houses. This is that story put in order, with every line marked as Canon (in the game) or Interpretation (the community’s reading). Updated for Build 42.21, November 2026.

A Knox Country town at night
These are the end times
01Part

Knox Country, July 1993

CanonThe game takes place in Knox Country, a fictional quarantined region of Kentucky around Muldraugh, West Point, Riverside, Rosewood and March Ridge, with Louisville added in Build 41 and many more towns in Build 42. The default game starts on 9 July 1993, a few days after the military sealed the area as the Knox Exclusion Zone.

InterpretationThe name plays on Fort Knox, the army post in the real area. The real Knox County, Kentucky is elsewhere in the state.

Every town is on the Knox Country map.

02Part

The Knox Event, day by day

DateWhat happenedSource
3 JulyCanonA military truck carrying hazardous waste crashes north of March Ridge. Knox Knews reports it on the 4th.In-game newspapers, Build 42
6 JulyCanonFlu-like cases reported near Muldraugh. The military blockade of the Knox Exclusion Zone goes up around this date.Kentucky Herald; broadcasts
9 JulyCanonDefault game start (Day 0). General John McGrew describes a flu-like illness, denies any deaths and keeps a no-fly zone. Triple-N reports roads blocked, families split, warning shots.Triple-N
10 JulyCanonProtests in Washington.Triple-N
11 JulyCanonThe WHO grounds non-essential flights. Riots and curfews in New York and Miami. The zone widens.Triple-N, NNR
12 JulyCanonA leaked West Point photo shows a one-armed man among bodies. Refugee camps move. A voice on 107.6 MHz describes the illness, a sniper and the dead drawn by noise.Triple-N; Unknown Frequency
13 JulyCanonReleased detainees say the infected attack the living and spread it by biting. Triple-N calls violence “the final symptom of the Knox Plague”.Triple-N
14 JulyCanonShooting at the main camp south of Louisville; the barrier is breached and the military pulls back. McGrew says “America is safe”. Overnight on WBLN, a guest blames contaminated meat and mentions Spiffo’s.Triple-N, WBLN
14 JulyInterpretationThe Spiffo’s meat theory is one character’s claim inside the fiction, not an established cause.–
15 JulyCanonPeople fall ill without bites, implying airborne spread. Crowds flee north towards Louisville and the Ohio River.Triple-N
16 JulyCanonThe military blows the Ohio River bridges, killing hundreds and trapping survivors in Knox Country. Cases reported in England and Mogadishu; rumours of an immune minority.Triple-N
17 JulyCanonThe virus is confirmed in Cincinnati, Mogadishu, Seoul, Okinawa and English cities. McGrew’s last address tells the unaffected to defend themselves.Triple-N
18 JulyCanonMost radio and TV goes off air.Broadcasts
20–21 JulyCanonTriple-N plays a looping recorded message, then falls silent. Other channels carry on in fragments for weeks.Broadcast data
03Part

Every station

A working radio or TV is a window onto the outside world for the first two weeks. Tune in daily: the news tells the story, the emergency broadcast warns of weather and the helicopter, and Life and Living teaches skills.

StationChannelWhat it carries
Triple-NTVNational news; the main thread of the Knox Event story
WBLN NewsTVLocal Kentucky news and talk
Life and Living TVTVSkill programmes for the first nine days (see skills)
TURBO, PawsTV, KPATV, GBC and othersTVEntertainment, sport, movies and music channels
Hitz FMRadio 89.4Music
Civilian RadioRadio 91.2Ham operators, survivors
LBMW Kentucky RadioRadio 93.2Reporter Jackie Jaye at the cordon
USRRadio 94.2Talk and news
Classified M1A1Radio 95.0Military call-signs and numbers
NNRRadio 98.0National news radio
KnoxTalk RadioRadio 101.2Call-in talk show
Unknown FrequencyRadio 107.6A one-off voice from inside the zone
Automated Emergency Broadcast SystemRandom 88–107.8Weather, power-grid and helicopter warnings

Frequencies are the defaults; Build 42 rewrote and added several channels.

04Part

The helicopter

CanonOnce, usually between day 6 and 9, a helicopter circles the zone and follows anyone it sees outdoors, dragging the dead behind it. The emergency broadcast warns “air activity detected” the day before.

InterpretationWho is flying it, and why, is never said. Military search, a news crew and a last evacuation are all fan theories. How to survive it is on zombies.

05Part

Spiffo’s and Spiffo

CanonSpiffo’s is the fast-food chain you find all over Knox Country, and Spiffo the raccoon is its mascot. He began in The Indie Stone’s first game, PAWS, got his restaurant when the fast-food tiles were drawn, and became the studio’s mascot. He turns up in the tutorial, on merchandise, and as the Chef and Brawler Spiffo charity plushies (see news).

06Part

“This is how you died”

CanonEvery new game opens with the same three lines: These are the end times. There was no hope of survival. This is how you died.

InterpretationThere is no cure, no rescue and no ending. The game is the story of how your character died, and how long you held out first. Every save is a different answer.

07Part

What nobody knows

  • What the infection is and where it really began. The truck, the meat and the military lab are all theories.
  • Why some people fall ill without a bite, and whether anyone is truly immune.
  • What happened beyond Kentucky after the broadcasts stopped.
  • Who flies the helicopter.
  • Whether the NPC survivors The Indie Stone has planned for after Build 42 will add to the story.
08Part

The real Kentucky behind Knox Country

Canon and real-world. Knox Country is a fictionalised slice of Kentucky, and the map is heavily based on the real area around Fort Knox and Louisville. Fort Knox itself is not on the map; the army base has sat on the planned list for years. The region was called Knox County until 2013, when the original map was scrapped and remade, and Muldraugh was rebuilt from satellite imagery of the real town before the Steam release that November.

Muldraugh

Real. Sits on one side of Dixie Highway south of Louisville. The name is pronounced "mull-drow".

West Point

Real. The Ohio River town north of Muldraugh; in-game it is the Knox Country administrative hub, "small town, big heart".

Louisville and Valley Station

Real. The city across the Ohio and its sparse southern suburb with the mall.

March Ridge and Dixie Mobile Park

Real. A gated military settlement, and a trailer park named for the highway it sits on.

Fallas Lake

Real, formerly labelled Ekron: a farming town with an oddly shaped lake.

Riverside and Rosewood

Fictional, as are Crossroads Mall and Knox Penitentiary.

Dixie Highway is the only road the game names. It is Route 31W, which in reality runs from Louisville to Nashville; in-game it runs from the Louisville border camp through Valley Station, West Point, Dixie Mobile Park and Muldraugh to March Ridge, and most of the zombie-dense commercial strips sit along it. Build 42 roughly doubled the map's surface area and pushed west: Brandenburg on the Ohio River, Ekron, and Irvington with its race track, all names of real Kentucky towns, plus reworks of every older town, 400 procedural basements and 75 hand-built ones. Interpretation: the exclusion zone's shape only makes sense if Fort Knox lies just off the map's edge, which is where community maps put it. See map for the current layout.

09Part

The military, the Exclusion Zone and the Louisville border

Canon. After the outbreak the United States government declared Knox Country an exclusion zone, quarantined it and kept information from leaving. The army put up fences and fortified border posts, and by 9 July the only way in or out was through a few guarded checkpoints. General John McGrew ran the operation and gave his addresses from the press area of the main camp on Dixie Highway south of Louisville, which is why his voice turns up on both TV and radio. Louisville itself was overwhelmed by 14 July and later folded into the zone.

Canon, from LBMW Kentucky Radio (93.2). Reporter Frank Hemingway reached the camp on the morning of 9 July and spent five days asking why residents were being kept in the dark. On 14 July a soldier fired on two unarmed civilians, protests followed, then warning shots and tear gas; two people were confirmed dead. That night the zone was breached and Frank was last heard screaming on air. His partner Jackie Jaye reported on 15 July that the infected had come "through the wire" and the army had pulled back, and on 16 July that she had caught the illness herself. Her sign-off is the last LBMW voice.

In-game. The Louisville Border Camp is still there to loot: an army checkpoint with offices, a medical tent, barracks and an armoury, and a refugee camp to its north with the press area and an LBMW radio shack. The gates do not open, but the fence has a breach on the eastern side, reached by turning east through the train yard. Two smaller posts on Louisville Road and Ernest Cooper Road need a sledgehammer from the south. Zombie counts around the main camp reach the thousands on busy settings; see loot locations.

Interpretation. A cassette found in Muldraugh claims the area was once used for military tests, with cattle deaths and a strange taste in the water. Players read it as a hint that the army caused the Knox Event. Nothing in the broadcasts confirms it, and McGrew's "America is safe" reads as either ignorance or a lie depending on who you ask.

10Part

Annotated maps and stash houses

Canon. Town maps you loot from glove boxes, bags, shelves and corpses sometimes carry handwritten notes left by a survivor who did not make it. Read the map and the notes appear: circles, arrows and labels such as "guns here". Each town has a fixed set of these stash definitions, and the game picks one that has not been used yet. March Ridge has ten and Louisville sixteen; Build 42 added sets for the new western towns.

The mechanics reward patience. The marked building only gets its stash when it first loads with that stash pending, so if you or a friend have already walked through it, you find an ordinary interior. Some stashes can only come from maps taken off a zombie, not from containers or cars. What you find ranges from a duffel or crate of guns, shotguns or tools, to a whole barricaded house with food, weapons and extra zombies posted around it, to a floorboard of medical supplies beside a church piano.

  • The sandbox option Annotated Map Chance sets the odds: Never, Extremely Rare, Rare, Sometimes (Apocalypse), Often (Outbreak) or Very Often. Extinction uses Extremely Rare.
  • Notes that promise a working car are lying. Annotated maps never spawn vehicles.
  • Coordinates in community lists drift as towns are reworked, so treat them as a starting point.

Interpretation. Together with the radio, these notes are the only voices of other survivors left in Knox Country, and their fate is implied by the barricades and by the fact that the goods were never collected. Players treat them as the game's quiet answer to what happened to everyone else. See loot locations for where region maps spawn.

11Part

Quick answers

When does Project Zomboid take place?

In July 1993. The default game starts on 9 July 1993 in Knox Country, Kentucky.

What caused the zombie outbreak in Project Zomboid?

The game never says. A hazardous-waste truck crash, contaminated meat and a military origin are all suggested by in-game sources or fans, but none is confirmed.

What is the Knox Event?

The outbreak and quarantine of Knox Country, Kentucky in July 1993, told through the game’s TV and radio broadcasts.

What does “This is how you died” mean?

It is the game’s opening line. There is no cure or ending; every game is the story of how your character died.

What is Spiffo?

A raccoon mascot of the in-game Spiffo’s restaurant chain and of The Indie Stone itself.

Broadcast timeline from the in-game Triple-N, WBLN and radio scripts as summarised by Wikipedia, NamuWiki and pzfans.com; Spiffo’s origin from The Indie Stone’s blog (November 2012). Newspaper details are from Build 42 and come from a single fan source. Anything marked Interpretation is community reading, not the game. Added November 2026: pzwiki.net World, Louisville, Louisville Border Camp, Frank Hemingway, LBMW Kentucky Radio, Muldraugh, West Point, Dixie Hwy; projectzomboid.com 42.20 release post; annotated map guides.