one dataset · paper, tables, graph, wiki
simgrammar the grammar of simulation

parts

13 mechanics, as Animal Crossing: New Horizons does them

core · 4

space & construction

Building placement

Furniture and items can be placed indoors and outdoors anywhere on the island, and the player chooses sites for residents' houses and shops.

progression & goals

Collection goals

Blathers' museum collects fish, bugs, sea creatures, fossils, and art donated by the player.

resources & production

Hand crafting

D.I.Y. recipes turn gathered wood, stone, iron, fruit, and other materials into tools, furniture, and decorations at a workbench.

time & pacing

Real-time clock

Game time follows the console clock; days, hemisphere-based seasons, shop hours, and species spawn windows advance while the game is off.

supporting · 9

space & construction

Decoration and beauty

The island rating (one to five stars) reflects development and scenery; three stars triggers K.K. Slider's concert.

control & automation

Direct avatar control

progression & goals

Milestone unlocks

Island growth brings shopkeepers and services such as Nook's Cranny, the museum, and the Able Sisters.

social relations

Relationship values

Villagers' friendship with the player grows through conversation and gifts.

resources & production

Renewable regrowth

Rocks, fruit, fish, and bugs replenish on daily or multi-day cycles, so gathering is a daily routine.

environment & ecology

Seasons

resources & production

Spoilage

Turnips bought on Sunday rot the following Sunday while sell prices follow one of four weekly patterns.

space & construction

Terraforming

The Island Designer edits cliffs, rivers and ponds, and paths.

environment & ecology

Weather

core loop

visit the island each real day -> gather wood, fruit, fish, bugs, and fossils -> craft D.I.Y. items and spend Bells and Nook Miles -> donate to the museum and decorate -> island rating rises and unlocks services -> new seasons bring new species

design notes

Time runs on the console clock, and weather, seasons, and species availability follow the hemisphere chosen at start, so a missed month means missing that month's fish and bugs. The developers lowered bank interest and removed waits from landscaping and crafting to reduce the payoff of changing the console clock. The island's one-to-five-star rating gates milestones such as K.K. Slider's concert at three stars, after which the Island Designer lets players add and remove cliffs, water, and paths. The turnip stalk market sells turnips on Sunday mornings, changes buy prices twice daily under one of four weekly patterns, and spoils unsold turnips the next Sunday.

appears in

the paper, 2 sections · 1 chapter
paper

5. The structure of the design space

linked in this section of the paper

paper
paper

Appendix A. Game catalog

linked in this section of the paper

paper
catalog

The catalog

listed with its year, developer, subgenre, and number of mechanics

book
ch 10

Chapter 10. Bets

linked from the text

book

sources

2
Wikipedia contributors (2026). Animal Crossing: New Horizons. Wikipedia
Nookipedia contributors (2026). Stalk Market. Nookipedia

provenance

runs in log/runs
2026-10-24
created2026-10-24-catalog-gccatalog