Get the BIOS files
Paste this in a terminal. It finds the setup and installs the missing BIOS files.
Linux, macOS, Steam Deck
curl -fsSL https://abdess.github.io/retrobios/i | shWindows
irm https://abdess.github.io/retrobios/i.ps1 | iexOn a handheld: get the app for the system.
Full packs
Large downloads, for a device without internet. Extract into the BIOS folder.
A pack in parts: each part is an ordinary ZIP. Extract every part into the same folder. Nothing needs joining.
| Platform | Download | Size | Files | Extract to |
|---|---|---|---|---|
| Batocera 43.1 | part 1, part 2, part 3, part 4, part 5 | 10.9 GB | 20,717 | /userdata/bios/
|
| RetroBat 8.3.1 | part 1, part 2, part 3, part 4 | 8.9 GB | 11,209 | bios/
|
| EmuDeck 2.7EA | part 1, part 2, part 3 | 8.1 GB | 16,038 | ~/Emulation/bios/
|
| RetroArch v1.22.2 | part 1, part 2, part 3 | 7.5 GB | 14,989 | system/
|
| RomM 5.4.1 | Download | 831 MB | 468 | library/bios/
|
| MiSTer FPGA 2026-11-04 | Download | 29 MB | 90 | /media/fat/games/
|
Files no pack holds yet: gap analysis.
Only the most used setups have a pack, to keep the release small. For AmberELEC, BizHawk, EmuELEC, KNULLI, Lakka, MinUI, MyMinUI, NextUI, Recalbox, RetroDECK, RetroPie and ROCKNIX, use the command above.
What changed
- Arcade sets go where each setup's launcher looks for them: MAME on Batocera, RetroPie, RetroDECK and EmuDeck, AdvanceMAME on EmuELEC and AmberELEC.
- Files go to the folder a launcher sets: Dolphin's User folder, Cemu's MLC, GZDoom's IWADs in RetroDECK.
- PS2 BIOS files are checked the way each PCSX2 build checks them.
- The installer can remove the files of a system, a core or an emulator.
- The handheld launchers are on each setup's page of the site, always up to date.
- 653 emulators described from their own code, 21,938 files collected.
Thanks
Everyone who helped since the start
- Code and data: @BlackShad79, @dajiaohuang, @dsayson403, @habib256, @kleingeld1, @monster-penguin, @PixNyb, @Takiiiiiii, @Takiiiiiiii, @TayDon35 and @zjl88858.
- Reports: @72374, @abhayap, @Alsurag, @ammnt, @archtaurus, @Arcitec, @arpaterson, @bailpy6, @beadex, @birdybro, @blathers16, @boostashop, @BritishCynic, @bughaver, @Carl-Robert, @Cibomatto2002, @cigdangle, @Dantasstic, @dasbootbee, @Doyle4, @fidoboy, @gorshco, @GyaragaX, @halpz, @Hunnersmith, @iamdevnull, @iameduardod, @impliednarrative, @Ixsul, @JeremyNhan, @jh8284946-a11y, @kawaimoe, @KidGamer77, @LampaGJ, @LeBiquet, @maxengel, @Nightfullofstars, @Nioh8, @Norbz, @pablobenitogonzalez, @paperweightorder, @phobiac, @pisaura, @Proletar666, @PsxMicha, @radioactiveSue, @realdanielelias, @RMPowser, @sharkyiwc, @Sinistral2099, @soredake, @SpiralBrad, @spotanjo3, @user18081972, @waffelkin-netizen, @yigitsalar and @Yoshiman5551.
- Help in issues: @Abbadon-No0, @AboSari, @adamboutcher, @anonymouz, @Atomic-Germ, @dananothername, @djismgaming, @dominickvaccaro, @DrDustwolf, @FennekFox19, @Grkfrk69, @hanniabu, @JiaShuen, @jngayoso, @KptnKMan, @lattedesu, @MonsieurMuh, @nzgamer41, @Pardoxion-2, @playday3008, @port19x, @sek0208, @Seriousattempts, @SonicGamer20, @SuttonX, @Totalfrog, @wasyl00, @ydomenjoud and @zchjhnsn.
Full changelog: 96ef06b...v2026.11.11