Steam is a digital distribution platform developed by Valve Corporation that allows users to purchase, download, and play video games. Launched in 2003, it has become one of the largest gaming platforms in the world, offering a vast library of games across various genres, as well as features like multiplayer gaming, cloud saving, and user-generated content. In addition to game sales, Steam provides a community hub where players can connect, share content, and participate in discussions. The platform also hosts seasonal sales and events, making it a popular choice for gamers looking for deals and new experiences in the gaming world.