Steam is an online gaming service that is operated by Valve Corporation. It was first released in 2003 and since then has become one of the most popular digital distribution platforms for computer games. Steam offers a wide variety of games for purchase, both new and old, as well as a library of free-to-play titles. Additionally, it hosts a vibrant community of gamers who can communicate with each other, discuss games, and share tips and tricks. The platform also features a store where players can buy and sell in-game items and trading cards. Steam also supports various game events, tournaments, and other activities.