Every issue of COMPUTE!'s Gazette on the Internet Archive.
From Wikipedia: COMPUTE!'s Gazette (ISSN 0737-3716) was a computer magazine of the 1980s, directed at users of Commodore's 8-bit home computers. Publishing its first issue in July 1983, the Gazette was a Commodore-only daughter magazine of the computer hobbyist magazine COMPUTE!.
You can play any of the Commodore 64 games in the Internet Archive directly in your browser using their Vice-based emulator! The only annoying thing is that you have to configure a joystick in port 1 for most games before you start playing.