Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Sega CD: History, Legacy, Regions & Art

The Sega CD, known as Mega-CD in most regions outside North America and Brazil, is a CD-ROM peripheral and format for the Sega Genesis produced by Sega as part of the fourth generation of video game consoles. Originally released in Japan on December 12, 1991, it came to North America on October 15, 1992, and the rest of the world in 1993. The Sega CD…

Language: English [EN]
Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.
100%
More settings
100% 100% 100% 100% 100%

Sega CD topic overview

The analysis highlights History, Legacy, Regions and Art as prominent areas in the source structure around Sega CD.

Related topics
105
Source areas
6
Connected nodes
111
Extracted relationships
266
Concept neighborhoods
31
Bridge connections
111

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

History · 48 topics
Overview · 25 topics
Technical specifications · 12 topics
Games · 10 topics
Reception and legacy · 7 topics
Models · 3 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Also known as
Mega-CD (most regions outside North America and Brazil)
Best-selling game
Sonic CD, 1.5 million
CPU
Motorola 68000 @ 12.5 MHz
Developer
Sega
Discontinued
1996
Generation
Fourth

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Technical specifications

Models

Games

Reception and legacy

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Sega CD connects Entity context

The extracted context around Sega CD shows recurring relationship patterns in the source. For example, Sega CD → Advertising, After, America, As, Blockbuster, CD, CD-based, CD-ROM, Chicago, Consumer Electronic Show, December, Digital Pictures, FMV, Genesis, It, Japan, JP, July, Mega Drive, Mega-CD Another extracted example is Sega CD → According, Because, CD, CD-ROM, CPU, Development Labs, Genesis, Genesis' Motorola, However, In, It, JVC, Kalinske, Mbit, MHz, MHz CPU, NEC, RAM, Responding, Ricoh. Use these groups to spot repeated connection types before inspecting the individual relationships.

Sega CD

Top relations

related to Launch · 37
Sega CD → Advertising, After, America, As, Blockbuster, CD, CD-based, CD-ROM, Chicago, Consumer Electronic Show, December, Digital Pictures, FMV, Genesis, It, Japan, JP, July, Mega Drive, Mega-CD
related to Development · 34
Sega CD → According, Because, CD, CD-ROM, CPU, Development Labs, Genesis, Genesis' Motorola, However, In, It, JVC, Kalinske, Mbit, MHz, MHz CPU, NEC, RAM, Responding, Ricoh
related to Reception and legacy · 33
Sega CD → Aaron Birch, According, Best New Peripheral, Blake Snow, CD, Damien McFerran, Electronic Gaming Monthly, Famicom Tsūshin, Four, Game Machine Cross Review, GamePro, Genesis, However, IGN's Levi Buchanan, In, Japanese Mega-CD, Jeremy Parish, May, Near, Parish
related to Models · 30
Sega CD → Aiwa, Another, April, CD, CSD-GM1, Europe, Genesis, Genesis CDX, Interactive Multiplayer, Its, Japan, JVC, LaserActive, Mega CD, Mega Drive, Mega-LD, Multi-Mega, North America, Pioneer Corporation, Sega
related to Technical specifications · 28
Sega CD → Additional, ASIC, Audio, BIOS, CD, CD-ROM, CD-ROMs, Combining, CPU, FMV, Genesis, Genesis's, In, It, Kbit, Mbit, Mbit Backup RAM Cartridge, MHz, Motorola, RAM
related to Games · 25
Sega CD → Although Sega, Batman Returns, Challenge, Dark Side, Dolphin, Ecco, Eternal Blue, Eternal Champions, Final Fight, Genesis, In, Lunar, Night Trap, Popful Mail, Rage, Sega, Six Sega CD, Snatcher, SNES, Sonic
related to Decline · 24
Sega CD → According, Amiga CD32, Brain Dead, By, Europe, Genesis, In, In Europe, Interactive Multiplayer, Japan, Kalinske, Mega-CD, Myst, Newer CD-based, North America, Sega, Sega CD's, Sega Saturn, The, Thorpe
related to Night Trap controversy · 21
Sega CD → Despite, Digital Pictures, Dracula, Entertainment Software Rating Board, FMV, Following, Former Sega Europe, In, It, Lieberman, Lieberman's, Mike Brogan, Night Trap, On December, Parliament, Sega, Sega's, The Sega CD, United Kingdom, United States Congress
Released · 6
Sega CD → AU: March 1993, BR: October 1993, EU: April 1993, JP: December 12, 1991, NA: October 15, 1992, UK: April 2, 1993
Introductory price · 3
Sega CD → JP¥49,800, US$299, £270

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

sega cd genesis games released game america video price cd-rom mega-cd also north units system 1993 cd's japan sega's fmv

Sega CD relationships Subject–Predicate–Object triples

TTTA extracted 266 structured relationships around Sega CD. Examples in this analysis include Sega CD → Also known as → Mega-CD (most regions outside North America and Brazil) and Sega CD → Best-selling game → Sonic CD, 1.5 million. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Sega CDAlso known asMega-CD (most regions outside North America and Brazil)1.00infobox
Sega CDBest-selling gameSonic CD, 1.5 million1.00infobox
Sega CDCPUMotorola 68000 @ 12.5 MHz1.00infobox
Sega CDDeveloperSega1.00infobox
Sega CDDiscontinued19961.00infobox
Sega CDGenerationFourth1.00infobox
Sega CDGraphicscustom ASIC1.00infobox
Sega CDIntroductory priceJP¥49,8001.00infobox
Sega CDIntroductory priceUS$2991.00infobox
Sega CDIntroductory price£2701.00infobox
Sega CDLifespan1991–19961.00infobox
Sega CDManufacturerSega1.00infobox
Sega CDMediaCD-ROM, CD+G1.00infobox
Sega CDRelated32X1.00infobox
Sega CDReleasedJP: December 12, 19911.00infobox
Sega CDReleasedNA: October 15, 19921.00infobox
Sega CDReleasedAU: March 19931.00infobox
Sega CDReleasedUK: April 2, 19931.00infobox
Sega CDReleasedEU: April 19931.00infobox
Sega CDReleasedBR: October 19931.00infobox
Sega CDSoundRicoh RF5C1641.00infobox
Sega CDStorage6.5 Mbit RAM (programs, pictures, and sounds), 128 kbit RAM (CD-ROM cache), 64 kbit RAM (backup memory)1.00infobox
Sega CDTypeVideo game console add-on1.00infobox
Sega CDUnits sold2.24 million1.00infobox
Sega CDis aincrease in data storage by its games being CD-ROMs0.90text
Sega CDis a12.5 MHz 16-bit Motorola 68000 processor0.90text
Sega CDis aseventh-lowest-selling console0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Sega CD bring nearby vocabulary together. In this analysis, examples include Sega, Genesis and Games. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Sega CD
    • Sega
    • Genesis
    • Games
    • Cd's
    • Released
    • America
    • Price
    • Game
    • North
    • Drive
    • Also
    • Fmv
  • sega cd
    • Sega
    • Genesis
    • Games
    • Released
    • Cd's
    • America
    • Price
    • Game
    • Also
    • North
    • Units
    • Drive
  • cd-rom
    • Genesis
    • Storage
    • Video
    • Development
    • Sound
    • Game
    • Games
    • According
    • Drive
    • Add-on
    • Also
    • North
  • sega genesis
    • Games
    • Sega
    • Add-on
    • Model
    • Cd's
    • Released
    • Also
    • Price
    • Game
    • Console
    • Fmv
    • Cpu
  • sega
    • Games
    • Cd's
    • Released
    • Price
    • Game
    • Also
    • Fmv
    • Console
    • Sega's
    • Video
    • Sound
    • Us
  • fourth generation of video game consoles
    • Game
    • Video
    • Sonic
    • America
    • Storage
    • Games
    • Console
    • Fmv
    • Library
    • North
    • Cd-rom
    • System
  • cd
    • Sega
    • Genesis
    • Games
    • Released
    • America
    • Also
    • North
    • Units
    • Game
    • Drive
    • Sega's
    • Audio
  • cpu
    • Sonic
    • Storage
    • Development
    • Mega
    • Model
    • Sound
    • Us
    • Genesis
    • Console
    • Drive
    • Night
    • Sold

Connections between topic areas Semantic bridges

For Sega CD, one of the stronger structural bridges in this analysis connects Sega CD with History. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Sega CDHistory · splits 63 ⟂ 49
Sega CDOverview · splits 86 ⟂ 26
Sega CDTechnical specifications · splits 99 ⟂ 13
Sega CDGames · splits 101 ⟂ 11
Sega CDReception and legacy · splits 104 ⟂ 8
Sega CDModels · splits 108 ⟂ 4

Map overview Semantic statistics

Sega CD

Nodes112
Edges111
Triples266
Avg. degree1.98
Density0.017857
Components1

Source & methodology

TTTA analyzes the structure around Sega CD to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Legacy, Regions & Art, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Sega CD · EN edition · Analysis: TopicsToTalkAbout

For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.