SG-1000

SEGA's first home console

  • 1983Released
  • 3rdGeneration
  • SegaDeveloper
SG-1000

SG-1000 Specifications

Processor
NEC 780C (Zilog Z80 clone)
Processor Speed
3.58 MHz (NTSC) | 3.55 MHz (PAL)
RAM
16 kbit (2 kB)
GPU
Texas Instruments TMS9928A
Video RAM
128 kbit (16 kB)
Resolution
256 x 192 pixels
Maximum Sprites
32
Maximum Colors
16

Overview

The SG-1000 (Sega Game 1000) is a cartridge-based video game console made by Sega.

It was Sega’s first home console and was released in 1983. It cost 15,000 yen and was sold in several markets, including Japan and Australia.

The SG-1000 faced strong competition and was not very successful. It had problems such as a poor controller and no A/V output, but the lessons Sega learned helped in developing the Master System.

In total 97 games were released for it: 68 on standard cartridges and 29 on Sega Cards.

Peripherals for the SG-1000 included keyboards, alternative controllers and a racing wheel.

Key Features

Sega's First Console

Sega's first home console, released in 1983 for 15,000 yen.

Cards and Cartridges

97 games: 68 on cartridges and 29 on Sega Cards.

Keyboard Add-Ons

Peripherals included keyboards, alternative controllers and a racing wheel.

TMS9928A Video

A Texas Instruments video chip with up to 32 sprites.

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SG-1000 Emulators

Which one to pick

  • Genesis Plus GX

    By Eke-Eke

    • Windows
    • macOS
    • Linux
    • Android

    Known forAccurate emulation of Sega's 8-bit and 16-bit consoles, mostly used as a RetroArch core.

  • GearSystem

    Latest build October 2026

    • Windows
    • macOS
    • Linux
    • iOS

    Known forA very accurate Z80 core that covers undocumented behaviour, for the SG-1000, Master System and Game Gear.

  • ares

    Latest build May 2026

    • Windows
    • macOS

    Known forA multi-system emulator that puts accuracy and preservation first.

  • Kega Fusion

    No longer developed

    • Windows
    • macOS
    • Linux

    Known forA long-standing all-in-one emulator for Sega's consoles from the SG-1000 to the 32X.

  • CrabEmu

    No longer developed

    • macOS
    • Linux

    Known forAn emulator for Sega's 8-bit consoles for macOS and Linux, but not Windows.

In short

Genesis Plus GX and Gearsystem are the most accurate choices, Genesis Plus GX in RetroArch and Gearsystem as a standalone emulator. ares covers the SG-1000 among many other systems. Kega Fusion and CrabEmu are no longer developed and are kept here as an archive.