Console encyclopedia
Sega · 1985
Master System
Sega Master System Emulator
Sega’s 8-bit home platform grew from the Japanese Mark III into the internationally branded Master System.[1]
- First launch
- 1985
- Manufacturer
- Sega
- Category
- Home console
- Generation
- 3
- Media
- ROM cartridges; Sega Cards on original model
The console story
The 1985 date in the catalog marks the Mark III lineage. The overseas Master System appeared in 1986; Japan received its Master System in October 1987.[1]
The Japanese model added FM sound and built-in support for Sega’s 3-D glasses. These features should not be assumed for every overseas unit. Later Master System II hardware simplified the original design.[1]
A history in milestones
Technical profile
- Processor
- Zilog Z80[2]
- Memory
- 8 KB work RAM + 16 KB video RAM[2]
- Display & graphics
- VDP · tile and sprite graphics[2]
- Media
- ROM cartridges; Sega Cards on original model[2]
- Audio
- PSG; FM on Japanese Master System[2]
- Power
- External AC adapter[1]
- Input & connectivity
- Two controller ports; console-mounted Pause button[2]
Why it mattered
Defining games
Years refer to the earliest release of the named version. Games are historical references; GameCapsule does not distribute them.
Hardware variants
Accessories & ecosystem
System family
Related systems in the collection. These links do not imply technical compatibility.
Hardware gallery
Master System
Evan-Amos, public domain, via Wikimedia Commons. Public domain (PD-self)
Console artwork from the Game Capsule collection. No gameplay screenshot is shown.
GameCapsule support
This system is represented in the catalog. Its emulator, file import and gameplay are not available today. There is no announced release date.
Expand beyond Game Boy while preserving a coherent collection. Other consoles remain catalog-only.
Bring your own compatible game files. Game Capsule does not include commercial games.
Explore the roadmapSources & further reading
- Historical overview and model chronology ↗
Historical narrative, regional release precision, model chronology, commercial context and accessories
Reviewed 2026-09-30 - Sega hardware encyclopedia · original specifications ↗
Processor, memory, graphics, audio and hardware interfaces
Reviewed 2026-09-30 - Alex Kidd in Miracle World · release history ↗
Named game/version release year; descriptive context
Reviewed 2026-09-30 - Phantasy Star · release history ↗
Named game/version release year; descriptive context
Reviewed 2026-09-30 - Wonder Boy III: The Dragon’s Trap · release history ↗
Named game/version release year; descriptive context
Reviewed 2026-09-30