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RetroBIOS

Get your files

Pick your setup. Its page gives the folder and the command.

Pick your setup

Section titled “Pick your setup”

Computers (Windows, Mac, Linux) and Steam Deck

BizHawkWindows, LinuxEmuDeckWindows, macOS, Linux, Steam DeckRetroArchWindows, macOS, Linux, Steam Deck, AndroidRetroBatWindowsRetroDECKLinux, Steam Deck

Raspberry Pi and mini PCs

BatoceraPCs, Raspberry Pi, Steam Deck, handheldsLakkaRaspberry Pi, small computersRecalboxBoards, PCs, handheldsRetroPieRaspberry Pi, PC, Odroid

Handhelds and TV boxes (Anbernic, Retroid, Miyoo)

AmberELECAnbernic RG351 and RG552EmuELECTV boxes, Odroid Go handheldsKNULLIHandhelds, bartopsMinUIAnbernic, Miyoo, Trimui handheldsMyMinUIAnbernic, Miyoo handheldsNextUITrimUI Brick, Smart ProROCKNIXHandheldsAndroidRetroid, AYN Odin and other Android handheldsLinux handheldsArkOS, muOS, Onion, spruceOSiPhone and iPadRetroArch, Delta, Provenance

Other setups

MiSTer FPGAIts own boardRomMA server

Folders and ZIP files

Section titled “Folders and ZIP files”
  • A big ZIP comes in parts, like Pack.part1of2.zip. Download every part.
  • Unzip them into your BIOS folder. Put the files straight in it, not in a new folder.
  • Leave the ZIPs inside, like neogeo.zip, as they are.
  • A few ZIPs hold their own top folder. Their setup's page says where to unzip them.
Every folder and ZIP in one table

Computers (Windows, Mac, Linux) and Steam Deck

Setup Runs on BIOS folder ZIP
BizHawk Windows, Linux Inside the BizHawk folder: Firmware\
Default place the installer looks: %USERPROFILE%\BizHawk\Firmware\		 No ZIP. Use the command.
EmuDeck Windows, macOS, Linux, Steam Deck Depends on the system: listed on its page ZIP (1.8 GB)
RetroArch Windows, macOS, Linux, Steam Deck, Android Depends on the system: listed on its page ZIP (3.6 GB)
RetroBat Windows Inside the RetroBat folder: bios\
Default install: C:\RetroBat\bios\		 ZIP (5.7 GB)
RetroDECK Linux, Steam Deck Steam Deck and Linux: ~/retrodeck/bios/
Installed on a microSD card: for example /run/media/mmcblk0p1/retrodeck/bios/		 No ZIP. Use the command.
LaunchBox Windows The folder of the RetroArch it starts, same as RetroArch ZIP (3.6 GB)

Raspberry Pi and mini PCs

Setup Runs on BIOS folder ZIP
Batocera PCs, Raspberry Pi, Steam Deck, handhelds On Batocera: /userdata/bios/
From Windows, over your home network: \\BATOCERA\share\bios\
From a Mac or Linux, over your home network: smb://batocera/share/bios/		 ZIP (5.2 GB)
Lakka Raspberry Pi, small computers On Lakka: /storage/system/
From Windows, over your home network: \\LAKKA\System\		 No ZIP. Use the command.
Recalbox Boards, PCs, handhelds On Recalbox: /recalbox/share/bios/
From Windows, over your home network: \\RECALBOX\share\bios\		 No ZIP. Use the command.
RetroPie Raspberry Pi, PC, Odroid On the Raspberry Pi: ~/RetroPie/BIOS/
From Windows, over your home network: \\RETROPIE\bios\		 No ZIP. Use the command.

Handhelds and TV boxes (Anbernic, Retroid, Miyoo)

Setup Runs on BIOS folder ZIP
AmberELEC Anbernic RG351 and RG552 On AmberELEC: /storage/roms/
From Windows, over your home network: \\AmberELEC\roms\		 No ZIP. Use the command.
EmuELEC TV boxes, Odroid Go handhelds On EmuELEC: /storage/roms/
From Windows, over your home network: \\EMUELEC\roms\		 No ZIP. Use the command.
KNULLI Handhelds, bartops On KNULLI: /userdata/bios/
From Windows, over your home network: \\KNULLI\share\bios\		 No ZIP. Use the command.
MinUI Anbernic, Miyoo, Trimui handhelds On the SD card: Bios/<TAG>/, one folder per console No ZIP. Use the command.
MyMinUI Anbernic, Miyoo handhelds On the SD card: Bios/<TAG>/, one folder per console No ZIP. Use the command.
NextUI TrimUI Brick, Smart Pro On the SD card: Bios/<TAG>/, one folder per console No ZIP. Use the command.
ROCKNIX Handhelds On ROCKNIX: /storage/roms/bios/ No ZIP. Use the command.
Android (Retroid Pocket, AYN Odin and others) Android RetroArch/system/ on the internal storage, same as RetroArch ZIP (3.6 GB)

Other setups

Setup Runs on BIOS folder ZIP
MiSTer FPGA Its own board On the MiSTer SD card: /media/fat/games/, one subfolder per core
From Windows, over your home network: \\MiSTer\sdcard\games\		 ZIP (17.9 MB)
RomM A server In the RomM library: bios/, one subfolder per platform ZIP (928.3 MB)

No ZIP on a row: the command serves that setup. ZIPs are made for the setups most people download. Why?

The ZIPs come from the latest release. The command may install newer files.

Only some consoles?

Section titled “Only some consoles?”

Pick them here, and get the files and the command. Or run the command below and press c when it asks.

iPhone and iPad

Section titled “iPhone and iPad”

Pick the consoles on a computer. Copy them to the app.

  • RetroArch: Files app, On My iPhone > RetroArch, then RetroArch/system/ (docs, code).
  • Delta, for DS games: import bios7.bin, bios9.bin and firmware.bin in Settings, under Nintendo DS (code).
  • Provenance: share the file, then Copy to Provenance (docs).

Not in the list? One command finds it

Section titled “Not in the list? One command finds it”

A terminal is a window where you type commands.

Open the Start menu. Type PowerShell and open it. Paste the line. Press Enter.

PowerShell
irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1 | iex

On Batocera, Recalbox and other game systems, run it on the device. Your setup's page shows how.

The command asks what to install. Press Enter for everything.

What it asks
  Enter) install everything
  i) only what the installed cores read
  c) choose systems, cores and regions
  q) quit
Is it safe?
  • It checks each file before saving it.
  • It writes in your BIOS folder. For some emulators it also adds files to your save folder.
  • It never changes or deletes a game or a save.
  • It keeps any file it replaces in a retrobios-backup folder, next to your BIOS folder. --restore puts it back.

Read the script first

Check your folder later. Add --check. It changes nothing.

PowerShell
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --check
Fill an SD card from a computer

Name your setup and the BIOS folder on the card. For RetroArch on a Nintendo Switch:

Linux, macOS:

Terminal
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform retroarch --dest /path/to/sdcard/retroarch/cores/system

Windows (PowerShell, E: being the card):

PowerShell
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --platform retroarch --dest E:\retroarch\cores\system
Copy the BIOS files from your old card

Plug the old card in and add --from with its folder. The BIOS files found there are copied, and the rest downloaded. The old card is only read.

Linux, macOS:

Terminal
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --from /media/me/OLDCARD

Windows (PowerShell, E: being the old card):

PowerShell
&([scriptblock]::Create((irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1))) --from E:\

Details: All installer options.

Next steps

Section titled “Next steps”

Maintained by Abdess on GitHub. Report a problem.

Packs from release v2026.10.10, .

MIT for the tooling and metadata. BIOS and firmware files are third-party system software, preserved for personal backup, archival and interoperability.