Though Stardew Valley has no set plot or lore, some description of the world can be found in various item descriptions, dialogue options, and Lost Books donated to the Museum.
There are also Elves, Tundra Dwellers, and at least one Fairy.
Humans make up the majority of Stardew Valley's population. Most humans live normal lives, however Wizards and Witches still exist and study ancient arcane energies.
Dwarves call themselves 'Smoluanu', or 'Sky People'. They are known for living underground and once having advanced technology in ancient times. Archaeologist M. Jasper believes they are an alien race, as indicated in the Lost Book entitled Mysteries of the Dwarves. One dwarf can be found living in the The Mines while a second is running a Shop in the Volcano Dungeon.
Shadow people are beings that cannot stand the light. They fought in the Elemental Wars when the Dwarves invaded their ancestral home deep underground. Krobus is a shadow person who can be found living in The Sewers. Most of the shadow people encountered in the game are monsters found in the Mines, known as Shadow Brutes and Shadow Shamans. Humans also call them Void Spirits.
Keepers of the forest. They are spirits that live with the trees. Most of the Junimos can be found living in the Community Center. They have inspired the Junimo Kart video game.
Not much is known about them, but they occasionally appear to bless your crops. The description of Fairy Stones reads "An old miner's song suggests these are made from the bones of ancient fairies."
Nimble and skilled craftsmen. Not much is known about them. The description for Elvish Jewelry reads "Dirty but still beautiful. On the side is a flowing script thought by some to be the ancient language of the elves. No Elvish bones have ever been found."
Not much is known about this race other from the Lost Book titled Goblins. A goblin (the Henchman) can be encountered guarding the Witch's Hut, who will only move after being given Void Mayonnaise, which is considered a delicacy by the Goblin race.
The Wizard makes a reference to their existence during the Luau, but not much is known about them. At the Night Market there is a Mermaid Boat, where upon entering, a mermaid will appear and begin singing to the player, accompanied by a cutscene. On rainy days a Mermaid will appear on the large rock by the shore of the Pirate Cove on Ginger Island. Very rarely, a green sea monster might appear under the left-most pier at The Beach and then swim south. This may or may not be a merperson. It is purely cosmetic and cannot be caught by fishing. Two merpeople appear in the perfection cutscene.
Referenced by Linus at the Festival of Ice, when he says "Igloo-building's an art I picked up from the tundra dwellers who live beyond the frozen sea." This may simply be referring to a specific group of humans.
The Elemental Wars
An event referenced by the Wizard. It was the war between the Dwarves and Shadow People. The Dwarves, having driven the Shadow People from their ancestral home, forced the Shadow People to resort to violence. The Elemental Wars have long been finished, and the Dwarves and Shadow People must now live in peace for the sake of the humans living around them.
A peaceful region located on the southern coast of the Ferngill Republic. Dr. Harvey identifies its location over his shortwave radio as 52 north, 43.5 east.
The ocean that makes up the entire southern coast of Pelican Town. There is a prairie-island located within it that had inspired the Journey of the Prairie King video game. Rumors suggest that Gunther comes from across the Gem Sea.
An archipelago in the Gem Sea belonging to the Ferngill Republic. Willy is from there. When married to Haley, if at 13 hearts she will ask the player if they ever thought about retirement. Haley wishes to spend your days together there. Gus usually uses Fern Island Ringfruit for his premier candy canes, according to his dialogue during the Feast of the Winter Star.
Ginger Island can be accessed after repairing the boat in the backroom of Willy’s Fish Shop and buying tickets. Ginger Island is the only island available to visit in the archipelago, though other islands can be seen from the boat on the way there. Ginger island appears to be the largest island.
It is unknown where exactly Castle Village is. It is known for its "artisanal velvet" as mentioned in the description of Earmuffs.
This is the City where a number of people from Pelican Town are from. Haley apparently has visited it, as The Queen of Sauce mentions that she reportedly fell in love with her Pink Cake after visiting Zuzu City. Alex notes that they have a gridball team called the Zuzu City Tunnelers, Sam mentions he used to live there, and Shane will take the Player to a match for his 10-heart event. Leah's ex, Kel, says in Leah's 10-heart event that they came all the way from Zuzu City to see the sculptures (Note: This only happens if you suggested the art show at the 2-heart event for Leah). After collecting all rarecrows, a letter is sent signed by "The Z.C. Rarecrow Society".
The movie "The Zuzu City Express" also references Zuzu City.
One of the dialogue choices during Penny's 8-heart event may lead the player to refer to Stardew Valley's natural resources by saying "You'll find no better lumber south of Grampleton."
During Clint's 6-heart event he invites Emily to the Grampleton Carnival.
The movie "It Howls in the Rain" references Grampleton.
Referenced in the movie "Natural Wonders: Exploring Our Vibrant World", it is an island far to the west of the Gem Sea, home to a diverse array of natural biomes and an abundant population of raccoons. The name "Prairie Island" possibly in reference to Journey of the Prairie King.
The nation in which Stardew Valley is located. Kent is a soldier for the Ferngill Republic, and is a survivor from a Gotoro prison camp. Morris believes that the Joja Corporation is good for the country as a whole.
A plaque on the waiting room wall of Harvey's Clinic reads "This clinic is licensed for medical practice by the Ferngill Republic Health Authority."
In Livin' Off The Land, on the 25th of Fall, Year 2, the host mentions that "it's just a couple of days until communities around the Ferngill Republic celebrate Spirit's Eve!" This suggests that the holiday is celebrated only in the Republic, but this is not elaborated further.
A nation at war with the Ferngill Republic. Located across the Gem Sea, south of Stardew Valley. The Traveling Cart contains goods smuggled out of the Gotoro Empire.
Yoba is the creator deity. A shrine to Yoba is located in Pierre's General Store, and a Sign Of The Vessel can be found in Pam’s house once upgraded. Yoba is worshiped by both humans and shadow people, and a "sign of the vessel" appears on the plaque above the forge on Ginger island, suggesting the dwarves may also believe in Yoba. The symbol of Yoba can be found in various places throughout Stardew Valley.
Organizations & Factions
A megacorp that seems to cover shipping, warehousing, distribution, mining activities, emergency medical services, and energy drink production. The Player used to work for them. Morris is the manager of the local JojaMart, and Sam and Shane work at the local JojaMart unless the player completes the Community Center.
A place where adventurers gather to swap stories and sell their loot, the Adventurer's Guild is for those who have proven themselves courageous and strong. The Player is initially not a part of the guild, but upon entering the Mines for the first time, they are sent a letter the following day from Marlon, the leader of the Adventurer's Guild, who invites you into the guild if you slay 10 slimes. Upon entering, you are able to purchase swords, rings, and boots, as well as receive rewards from Gil, an old adventurer, for completing monster-slaying goals.
Z.C. Rarecrow Society
A society that will send you the recipe for the Deluxe Scarecrow after you gather all eight of the Rarecrows.