For all intents and purposes, the answer to your question is no. You can find a handful of ROMs that are actually free on MAME's website: https://www.mamedev.

For all intents and purposes, the answer to your question is no. You can find a handful of ROMs that are actually free on MAME's website: https://www.mamedev.org/roms/ https://www.mamedev.org/roms/ There aren't many and none of the really famous titles is free. I would imagine that posting links in HN to such content would be verboten. Perhaps it would be acceptable to offer a hint. There used to be a site called Pleasuredome that shut down recently. They were the place to go to obtain any and all ROM / CHD files. I would suspect that if one were to search using the word "Pleasuredome" along with other obvious related key words, one could quite easily find what one was looking for.