Cores & BIOS Files¶
Every system below runs on a bundled libretro core. BIOS files go in the
matching folder under Bios/ on the SD card — the folder name is the tag
in parentheses after the system name (e.g. Game Boy Advance (GBA) →
Bios/GBA/), and file names must match exactly.
No BIOS files are included
BIOS files are copyrighted and do not ship with NX Redux — the
Bios folders are created empty. Dump the files you need from your own
hardware.
Systems and cores¶
| System | Core | BIOS |
|---|---|---|
| Amiga (PUAE) | puae2021 | Required — Kickstart ROMs; Bios/PUAE/readme.txt lists known-good files |
| Amstrad CPC (CPC) | cap32 | None |
| Arcade (FBN) | fbneo | No system BIOS; BIOS-based boards (e.g. Neo Geo) need the BIOS zip (neogeo.zip) with the ROM set — see the Arcade page |
| Atari 2600 (A2600) | stella2014 | None |
| Atari 5200 (A5200) | a5200 | Required — 5200.rom |
| Atari 7800 (A7800) | prosystem | Optional — 7800 BIOS (U).rom |
| Atari Lynx (LYNX) | handy | Required — lynxboot.img |
| Colecovision (COLECO) | gearcoleco | Required — colecovision.rom |
| Commodore 64 (C64) | vice_x64 | None (system ROMs built in) |
| Commodore 128 (C128) | vice_x128 | None (system ROMs built in) |
| Commodore PET (PET) | vice_xpet | None (system ROMs built in) |
| Commodore Plus4 (PLUS4) | vice_xplus4 | None (system ROMs built in) |
| Commodore VIC20 (VIC) | vice_xvic | None (system ROMs built in) |
| Doom (PRBOOM) | prboom | Required — prboom.wad (the launcher refuses to start without it) |
| Famicom Disk System (FDS) | fceumm | Required — disksys.rom |
| Game Boy (GB) | gambatte | Optional — gb_bios.bin |
| Game Boy Color (GBC) | gambatte | Optional — gbc_bios.bin |
| Game Boy Advance (GBA) | gpSP | Recommended — gba_bios.bin (a built-in replacement exists; the real BIOS improves compatibility) |
| Game Boy Advance (MGBA) | mGBA | Optional — gba_bios.bin |
| Super Game Boy (SGB) | mGBA | Optional — sgb_bios.bin for full Super Game Boy accuracy |
| Microsoft MSX (MSX) | blueMSX | Required — blueMSX system files: the Databases/ and Machines/ folders |
| Neo Geo Pocket (NGP) | RACE | None |
| Neo Geo Pocket Color (NGPC) | RACE | None |
| Nintendo ES (FC) | FCEUmm | None |
| Pico-8 (P8) | fake-08 | None (plays .p8 / .p8.png carts) |
| Pokémon mini (PKM) | PokeMini | Optional — bios.min (FreeBIOS built in) |
| Sega 32X (32X) | PicoDrive | None |
| Sega CD (SEGACD) | PicoDrive | Required — bios_CD_U.bin, bios_CD_E.bin, bios_CD_J.bin |
| Sega Game Gear (GG) | PicoDrive | None |
| Sega Genesis (MD) | PicoDrive | None |
| Sega Master System (SMS) | PicoDrive | None |
| Sega SG-1000 (SG1000) | PicoDrive | None |
| Sony PlayStation (PS) | PCSX-ReARMed | Recommended — psxonpsp660.bin or scph1001.bin (an HLE fallback exists; a real BIOS is strongly recommended for compatibility) |
| Super Nintendo ES (SFC) | Snes9x | None |
| Super Nintendo ES (SUPA) | Mednafen Supafaust | None |
| TurboGrafx-16 (PCE) | Mednafen PCE Fast | HuCards: none; CD games: syscard3.pce required |
| Virtual Boy (VB) | Mednafen VB | None |
Two systems appear twice on purpose: Game Boy Advance ships both gpSP
(GBA — faster) and mGBA (MGBA — more accurate), and Super Nintendo
ships both Snes9x (SFC) and Supafaust (SUPA) — pick per game by which
Roms folder you use.
Standalone emulators¶
Nintendo 64 (Mupen64Plus) and
Nintendo DS (Drastic) need no BIOS files.
Sega Dreamcast (Flycast) boots without one via HLE; a real
dc_boot.bin in Bios/DC/ is optional. Naomi and Atomiswave arcade games
on Flycast do require their BIOS zips (naomi.zip / awbios.zip) in
Bios/DC/ — see the Dreamcast page
for the details, including which awbios.zip set works.