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

parts

10 mechanics, as Caves of Qud does them

core · 3

world generation

Procedural terrain

Zones mix handmade and procedural maps; some generators use wave function collapse.

social relations

Reputation

Every creature belongs to factions; the player's standing with each faction decides who attacks, trades, or talks.

world generation

Simulated history generation

Generated histories of past sultans are written into the world as lore, shrines, and quests.

supporting · 7

social relations

Faction diplomacy

physics & materials

Fluid and gas simulation

biology & health

Injury body model

physics & materials

Material interactions

multiplayer & persistence

Modding API

XML data files and C# scripting mods, distributed through Steam Workshop.

risk & failure

Permadeath

time & pacing

Turn structure

core loop

explore generated and handmade zones -> fight, trade, and talk with faction members -> mutate and equip -> uncover generated history -> go deeper

design notes

A roguelike included for its simulation layers: faction reputation that every creature carries, liquids that mix and flow, body-part anatomy, and procedurally generated sultan histories that the world refers to. It is a frequently cited example of wave function collapse in a shipped game.

appears in

the paper, 3 sections · 1 chapter · 1 episode
paper

3. The catalog

linked in this section of the paper

paper
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 7

Chapter 7. What shipped

named in the text

book
ep 6

What AI shipped

on screen at 5:34 tools that never reach you

episode

claims

2 with sources
c01high

Early access began 2015-07-15 and 1.0 released 2024-12-05, published by Kitfox Games.

src-steam-2024-caves-of-qud

c02medium

Caves of Qud is among the shipped games listed as using wave function collapse.

src-gumin-2016-wavefunctioncollapse

sources

2
Freehold Games (2024-12-05). Caves of Qud. Steam
Maxim Gumin (2016-09-30). WaveFunctionCollapse. GitHub (mxgmn)

provenance

runs in log/runs
2026-10-24
created2026-10-24-catalog-additionscatalog
2026-10-25
reviewed2026-10-25-contributor-readinessmaintenance