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# HBMAME (Homebrew MAME) - RetroBIOS

Type | libretro
Classification | enhanced_fork
Source | https://github.com/libretro/hbmame-libretro
Upstream | https://github.com/Robbbert/hbmame
Version | Git
Profiled | 2026-03-23
Cores | hbmame
Systems | arcade
Author | Robbbert
Based on | MAME 0.220
Game count | 8511

Technical notes

Fork of MAME 0.220 preserving homebrew and hacked arcade games. Builds as TARGET=hbmame with 191 driver files covering 8511 game entries. Drivers are hack/homebrew variants of CPS1, CPS2, CPS3, Neo Geo, Pac-Man, Galaxian, etc.

BIOS handling is identical to MAME. Neo Geo drivers reuse the standard neogeo.zip BIOS set via unmodified NEO_BIOS macros (neogeo.h). No other HBMAME driver defines ROM_SYSTEM_BIOS entries. BIOS files are expected as MAME-format ZIP archives in the ROM search path.

Data directories (artwork, cheat, hash, ini, samples) can be placed in {system_dir}/mame/ but are optional and game-specific.

No BIOS or firmware files required.

Why no files

BIOS ROMs are inside parent ROM set ZIPs (neogeo.zip, etc.) following MAME convention. No standalone system directory files.

Generated on 2026-03-25T14:56:43Z