“Most of the world’s video games from close to 50 years of history are effectively, legally dead. A Video Games History Foundation study found you can’t buy nearly 90% of games from before 2010. Preservationists have been looking for ways to allow people to legally access gaming history, but the U.S. Copyright Office dealt them a heavy blow Friday. Feds declared that you or any researcher has no right to access old games under the Digital Millennium Copyright Act, or DMCA.”
I answered your question on another thread of the same topic, but I’ll answer it here too for anyone else who has the same question: The law is just about digital backups. Vintage stores are still legal, and if anything this would boost sales at a vintage stores. If the game you’d like to play is unavailable at a vintage store or on eBay (or wherever else) then it will be entirely inaccessible for you to play legally.