All Wikidata items / Wikipedia articles are categorized in buckets. The design principle is: gameplay first, performance (query speed) second, academic last; coarsely classifying as a decision tree, instead of networking as an ontologically precise semantic graph. The tree branches are grown and pruned to achieve balanced number of items/articles per node.
The 64 top-level hypernyms of controlled vocabulary are presented for players to pick during the game by detonating 💣
The hypernym categories can be arranged from 1D to 2D using Hilbert curve for better localtity of reference for searching performance and information visual locality to reduce users cognitive burden.
Hilbert curve (order=3) of hypernym categories
Concept Religion────Theory────Hypothesis Appliance──────Machine───────Instrument Drink
│ │ │ │ │ │
│ │ │ │ │ │
Myth───────Ideology Axiom───Mathematics Tool──────Architecture Clothing──────Food
│ │
│ │
Action──────History Theorem───Shape Goods─────Infrastructure Physical_object───Technology
│ │ │ │ │ │
│ │ │ │ │ │
Behavior Phenomenon───Time────Entity Astronomical_object──Chemical_substance──Matter Computer_science
│ │
│ │
Social_behavior──Culture Group───Organization──Ethnic_group────Property Humanities───Science
│ │ │ │
│ │ │ │
Game──────────Sport System──Structure Language───────────Quality Knowledge───Document
│ │ │ │
│ │ │ │
Art Change───Disease Anatomy Physical_property Object────────Phrase Message
│ │ │ │ │ │ │ │
│ │ │ │ │ │ │ │
Genre─────Technique Process───Organism Location────Unit_of_measurement Information───Sign
Monospaced Hilbert curve of hypernym categories
道 教──論──設 置──械──器 飲
│ │ │ │ │ │
神──意 理──學 具──築 衣──食
│ │
動──史 則──形 貨──建 物──工
│ │ │ │ │ │
行 象──時──實 星──素──粒 計
│ │
為──文 群──組──族──性 倫──格
│ │ │ │
戲──健 系──構 語──品 知──書
│ │ │ │
藝 變──疾 解 質 彼──言 訊
│ │ │ │ │ │ │ │
風──技 程──生 輿──衡 信──記
Compact tiles of hypernym categories
道 教 論 設 置 械 器 飲
神 意 理 學 具 築 衣 食
動 史 則 形 貨 建 物 工
行 象 時 實 星 素 粒 計
為 文 群 組 族 性 倫 格
戲 健 系 構 語 品 知 書
藝 變 疾 解 質 彼 言 訊
風 技 程 生 輿 衡 信 記
Tree view of hypernym categories
Node Path
-----------------------------------------------------------------------------------------------------------------------
151885 Concept /Concept
..12827256 │────── Myth /Concept/Existence/Myth
..7257 │────── Ideology /Concept/Existence/Ideology
...9174 │ └── Religion /Concept/Existence/Ideology/Religion
.17737 ├── Theory /Concept/Theory
..41719 │ └── Hypothesis /Concept/Theory/Hypothesis
.395 ├── Mathematics /Concept/Mathematics
..17736 │ ├── Axiom /Concept/Mathematics/Axiom
..65943 │ ├── Theorem /Concept/Mathematics/Theorem
..207961 │ └── Shape /Concept/Mathematics/Shape
.35120 └── Entity /Concept/Entity
..11471 ├── Time /Concept/Entity/Time
...483247 │ ├── Phenomenon /Concept/Entity/Time/Phenomenon
...309 │ ├── History /Concept/Entity/Time/History
...4026292 │ ├── Action /Concept/Entity/Time/Action
....9332 │ │ ├── Behavior /Concept/Entity/Time/Action/Behavior
.....921513 │ │ │ ├── Social behavior /Concept/Entity/Time/Action/Behavior/Social_behavior
.....11042 │ │ │ ├── Culture /Concept/Entity/Time/Action/Behavior/Culture
.....349 │ │ │ ├── Sport /Concept/Entity/Time/Action/Behavior/Sport
.....11410 │ │ │ ├── Game /Concept/Entity/Time/Action/Behavior/Game
.....735 │ │ │ └── Art /Concept/Entity/Time/Action/Behavior/Art
......483394 │ │ │ └── Genre /Concept/Entity/Time/Action/Behavior/Art/Genre
....2695280 │ │ └── Technique /Concept/Entity/Time/Action/Technique
...1150070 │ ├── Change /Concept/Entity/Time/Change
....12136 │ │ └── Disease /Concept/Entity/Time/Change/Disease
...3249551 │ └── Process /Concept/Entity/Time/Process
..7239 ├── Organism /Concept/Entity/Organism
...514 │ └── Anatomy /Concept/Entity/Organism/Anatomy
..6671777 ├── Structure /Concept/Entity/Structure
...58778 │ └── System /Concept/Entity/Structure/System
....16887380 │ └── Group /Concept/Entity/Structure/System/Group
.....43229 │ ├── Organization /Concept/Entity/Structure/System/Group/Organization
.....41710 │ └── Ethnic group /Concept/Entity/Structure/System/Group/Ethnic_group
..937228 ├── Property /Concept/Entity/Property
...1207505 │ ├── Quality /Concept/Entity/Property/Quality
....315 │ │ └── Language /Concept/Entity/Property/Quality/Language
...4373292 │ ├── Physical property /Concept/Entity/Property/Physical_property
....2221906 │ │ └── Location /Concept/Entity/Property/Physical_property/Location
...47574 │ └── Unit of measurement /Concept/Entity/Property/Unit_of_measurement
..488383 └── Object /Concept/Entity/Object
...187931 ├── Phrase /Concept/Entity/Object/Phrase
...11028 ├── Information /Concept/Entity/Object/Information
....3695082 │ ├── Sign /Concept/Entity/Object/Information/Sign
....628523 │ ├── Message /Concept/Entity/Object/Information/Message
....49848 │ ├── Document /Concept/Entity/Object/Information/Document
....9081 │ └── Knowledge /Concept/Entity/Object/Information/Knowledge
.....80083 │ ├── Humanities /Concept/Entity/Object/Information/Knowledge/Humanities
.....336 │ └── Science /Concept/Entity/Object/Information/Knowledge/Science
......21198 │ ├── Computer science /Concept/Entity/Object/Information/Knowledge/Science/Computer_science
......11016 │ └── Technology /Concept/Entity/Object/Information/Knowledge/Science/Technology
...223557 └── Physical object /Concept/Entity/Object/Physical_object
....35758 ├── Matter /Concept/Entity/Object/Physical_object/Matter
....79529 ├── Chemical substance /Concept/Entity/Object/Physical_object/Chemical_substance
....6999 ├── Astronomical object /Concept/Entity/Object/Physical_object/Astronomical_object
....28877 └── Goods /Concept/Entity/Object/Physical_object/Goods
.....121359 ├── Infrastructure /Concept/Entity/Object/Physical_object/Goods/Infrastructure
......811979 │ └── Architecture /Concept/Entity/Object/Physical_object/Goods/Infrastructure/Architecture
.....39546 ├── Tool /Concept/Entity/Object/Physical_object/Goods/Tool
......1183543 │ ├── Appliance /Concept/Entity/Object/Physical_object/Goods/Tool/Appliance
......11019 │ ├── Machine /Concept/Entity/Object/Physical_object/Goods/Tool/Machine
......34379 │ └── Instrument /Concept/Entity/Object/Physical_object/Goods/Tool/Instrument
.....11460 ├── Clothing /Concept/Entity/Object/Physical_object/Goods/Clothing
.....2095 └── Food /Concept/Entity/Object/Physical_object/Goods/Food
......40050 └── Drink /Concept/Entity/Object/Physical_object/Goods/Food/Drink
Monospacedpath道
├───神
├───意
│ └─教
├─論
│ └─設
├─學
│ ├─理
│ ├─則
│ └─形
└─實
├─時
│ ├─象
│ ├─史
│ ├─動
│ │ ├─行
│ │ │ ├─為
│ │ │ ├─文
│ │ │ ├─健
│ │ │ ├─戲
│ │ │ └─藝
│ │ │ └─風
│ │ └─技
│ ├─變
│ │ └─疾
│ └─程
├─生
│ └─解
├─構
│ └─系
│ └─群
│ ├─組
│ └─族
├─性
│ ├─品
│ │ └─語
│ ├─質
│ │ └─輿
│ └─衡
└─彼
├─言
├─信
│ ├─記
│ ├─訊
│ ├─書
│ └─知
│ ├─倫
│ └─格
│ ├─計
│ └─工
└─物
├─粒
├─素
├─星
└─貨
├─建
│ └─築
├─具
│ ├─置
│ ├─械
│ └─器
├─衣
└─食
└─飲