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Game · Consoles, homebrew & emulation

Missingno

Missingno is a console and retro computer emulator, available on Linux.

  • Completely free
  • Linux
  • Open source

At a glance

Missingno is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

  • Open source code
  • Commercial use allowed

About

Missingno is an emulator for the Game Boy, Game Boy Color, Atari VCS (2600), Sega SG-1000, and ColecoVision. It is built around faithful models of the original hardware: games look, sound, and behave as they do on the real machines, with display options that recreate the look of the original LCD and CRT screens. The library manages your collection: cover art and metadata are fetched automatically, play sessions and screenshots are recorded, and saves are managed and backed up. Homebrew games can be browsed and downloaded from Homebrew Hub, and physical cartridges read and written with a GBxCart RW. The integrated debugger works across every supported system, with disassembly, breakpoints, and live inspection of CPU, video, and audio state.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 7 November 2026
  • Description from Flathub — AppStream (Flathub)

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