GOG.com is a digital platform for discovering, purchasing, downloading, and playing classic PC games and modern releases. Its gamer-first approach emphasizes DRM-free games and player ownership, with a broad catalogue spanning genres such as role-playing, action, adventure, strategy, indie, shooters, platformers, and city builders. The store features new releases, bestsellers, discounted titles, free games, downloadable content, and upcoming and early-access games. Examples include classic titles such as Nox, Myst: Masterpiece Edition, and Thief Gold alongside contemporary releases and remasters.

GOG also offers GOG Galaxy, an application available for Windows and Mac, and supports game preservation through its GOG Preservation Program. Additional offerings include GOG Patrons, Dreamlist, One-click Mods, trailers, community forums, and editorial content such as its blog and Classics Vault. Customers can manage their library, wishlist, reviews, friends, and orders through an account, while support resources include code redemption and customer contact options. GOG promotes making games last and lists a 30-day money-back guarantee, giving players a way to explore its collection with added purchase assurance.