It’s free to view if you sign up for an account on the site, and goes all the way back to 1991. A blog post announcing the additions from editor-in-chief Matt Miller said: “In the coming months, we plan to surface specific legacy articles we believe are worth exploring. In the meantime, enjoy this new level of free access to the rich history of gaming we’ve covered over the last 34 years.”
Saving you a click, the catalogue is available here : https://www.gameinformer.com/magazine-archive