MiSTer FPGA Forum

Some of you may already use this, but this site is great for figuring out what system your favorite games ran on.

https://www.system16.com/list.php

This is a great resource, but be careful with it, because arcade systems are pretty loosely defined. Some come in multiple revisions or configurations, some have hardware split between shared boards and game-specific boards (e.g. games might share a graphics board but have different sound hardware), and occasionally a "system" is just people lumping vaguely similar boards together and ignoring the differences. A quick rule of thumb is whether the games share not only the same MAME driver, but also the same "machine" (fourth argument to the GAME macro).

Also, this is not as exhaustive as it may at first appear. For instance, the ENTIRE Mr Do! lineage of games (Universal/Taito) seems to be missing