GMR was a monthly magazine on video games that was published by Ziff-Davis — the publisher of such magazines as PC Magazine, Electronic Gaming Monthly, and Computer Gaming World (later Games for Windows: The Official Magazine). GMR was launched in February 2003, being sold in only the Electronics Boutique (EB) chain of video game stores. The magazine was unusual among multiconsole magazines in that it covered PC as well as console games, as well as its minimalistic cover art, and, in its last few months, its shift in focus toward promotion of less mainstream titles. It lasted exactly two years, as the 25th and last issue (which was only sent to subscribers) was the February 2005 edition (though prints were limited and not even all subscribers received the final issue).

As the magazine was funded by Electronics Boutique, the magazine stopped circulation when GameStop merged with EB Games, as GameStop already had its own magazine, Game Informer. The fates of its entire staff remain unknown, although James "Milkman" Mielke and Andrew "Skip" Pfister have transferred to the 1Up.com Network online.

Shortly after the release of the PS2 game Monster Hunter, an online-only Event Quest was released which allowed players to obtain the "GMR Chrome Heart," a weapon prominently featuring an embossed GMR logo.