GameBase64 is an ongoing effort to document and catalog every Commodore 64 game ever made. It's a database of over 20000 games and includes many additional bits of information about each game, such as manuals, covers and maps, along with the original game media.
Previously using GameBase64 on the Mac was cumbersome and frustrating because it was not designed with Mac OS X in mind. GameBase64 Browser is trying to remedy this situtation. It's a ground-breaking frontend to the GameBase64 database, which allows you to find and play the games you remember from the past, quickly and easily with a user interface you'll feel comfortable in.
Please note that games, screenshots and extras are not part of GameBase64 Browser. You will have to download them yourself.