: NES ROMs are digital copies of games that were originally released on the Nintendo Entertainment System (NES). These ROMs can be played on emulators, which mimic the functionality of the original NES console.
To play NES ROMs, including 400-in-1 collections, you'll need an NES emulator. Here are some popular options:
Capcom Arcade Stadium, Konami Anniversary Collections, and Atari 50 all contain NES-era games legally for $5-$20. You get achievements, online leaderboards, and zero viruses.
Unlocking Nostalgia: A Guide to 400-in-1 NES ROMs and Safe Downloading
Instead of a cheap multicart hack, download the "No-Intro NES 2024" set. This is a complete collection of every verified, clean NES ROM ever released. You then use a frontend like or LaunchBox to create a "Favorites" playlist of 400 games.