The full MAME 0.139u1 ROMs list contains , encompassing classic arcade video games, mechanical games, and prototypes up to the year 2010.
MAME 0.139u1 is a retro build of the MAME emulator family (a 0.139-series update). A “ROMs list” for this version refers to the set of arcade game ROMs (and CHD images) that are compatible with that specific MAME build. Because MAME’s ROM requirements and names change between releases, using ROMs matched to 0.139u1 ensures correct checksums, filenames, and proper emulation.
The main reason 0.139u1 remains relevant is its efficiency. Modern MAME versions prioritize "accuracy" over "speed," meaning they require significant CPU power to run games that 0.139u1 can handle with ease.
: Originally built for dual-core PCs from 2010, it is now the "balanced" choice for mid-range Android devices and Raspberry Pi setups. Significance of the 0.139u1 Version