Skip to content
Nostyra
Tiếng Việt
Menu
Sega · Home console · 1983 Experimental

Sega SG-1000 emulator for PC

SG-1000 games run on Genesis Plus GX, the core shared with the Mega Drive, Master System and Game Gear, and are matched against the No-Intro SG-1000 DAT.

Written by vivusk, Nostyra maintainer Last reviewed Based on the Nostyra README and release notes

Game files

  • .sg files.
  • Keep the original extension: Genesis Plus GX picks the system by extension, so a Master System game renamed .bin would start as a Mega Drive game.

Saves and patches

  • Battery saves go to saves/sg1000/<ROM name> [<ID>]/save.srm. The core writes only up to the last used byte, so the file can be a few bytes; a game that never uses its save memory writes none.
  • Soft patches (.ips, .ups, .bps beside the ROM) work; the patched game shares the original's save folder.

Controls

  • Buttons show as 1 (B), 2 (A) and Start: the system's name with the shared RetroPad name in brackets.
  • Default keyboard: arrow keys = D-pad, Z = B, X = A, A = Y, S = X, Q / W = L / R, Enter = Start, Right Shift = Select.

Known limits

  • Marked Experimental: manual testing on real games is still in progress.

Before you start

Nostyra does not include, download or link to SG-1000 games or BIOS files. Use games you own, dumped from your own cartridges or discs. See the disclaimer.

Features for SG-1000 games

Save states A save state stores the whole emulated machine at one moment, so you can continue from any point, not only where the game lets you save. Rewind Rewind keeps a short history of the game in memory. Holding the rewind key plays it backwards at 2× speed. CRT and LCD shaders Shaders change how the picture is drawn, for example to imitate the scanlines of a CRT TV or the pixel grid of a handheld screen. Soft patching Translations, bug fixes and hacks are often shared as patch files. Nostyra applies them in memory when the game starts; the ROM file is never changed. RetroAchievements RetroAchievements is a community service that adds achievements to classic games. Nostyra supports it on 14 systems using rcheevos, the same library RetroArch uses.

Play SG-1000 games with Nostyra

Free and open source. Portable zip, no installer, no account.

Download for Windows
macOS (planned) Linux (planned) iOS (planned) Android (planned)

Version 0.1.0 · 25.9 MB zip · Windows 10 / 11, 64-bit

Hosted on GitHub Releases. First time? Read the install guide.