Steam sold EA Sports College Football 27 at launch as a Valve-owned PC storefront.
College Football 27 marked the series’ first PC release, and Electronic Arts listed Steam among the places where PC players could purchase and play the game at launch. The same PC release was also available through the EA app and Epic Games, but Steam is the Valve-operated storefront named in the question.
Steam began in 2003 as a software client for distributing updates to Valve games. It expanded into third-party game distribution in 2005 and became a major digital marketplace for PC software. Although Steam handles the storefront, downloads, updates, community features and licensing layer, some EA games still require an EA account or EA services to launch and authenticate.
Origin is the common mix-up because it was EA’s former PC distribution platform. EA later replaced Origin for Windows with the EA app. Battle.net is associated with Blizzard, while GOG is a separate storefront known for DRM-free offerings. The important distinction is that College Football 27’s PC availability included multiple storefronts, not just Steam.