Steam Timeline is the label Steam applies to games that plug into its built-in game recording feature, where Steam captures your gameplay in the background and lays it out on a timeline you can open from the overlay at any point in a session. Every game on Steam can be recorded this way, but a game that carries this label goes a step further by sending its own markers to that timeline, so instead of scrubbing blindly through an hour of footage you see events flagged along the bar: an achievement unlocking, a level or chapter starting, a boss going down, a round being won or a teammate being rescued, whatever moments the developer decided were worth noting. Games can also stamp the timeline with phases, such as a match or a campaign chapter, so a long session breaks into readable sections rather than one continuous stretch. In practice this changes how you use recording. When something worth keeping happens, you tap the overlay shortcut, jump straight to the marker and trim a clip of the seconds around it, then save it locally, export it as a video file or share it through Steam without leaving the game. The whole thing runs on your own hardware, so there is no upload delay and no service to sign up for, and it works on Steam Deck as well as a desktop PC. Recording is off by default and can be limited to manual capture or a rolling buffer that keeps only the most recent minutes, so it never fills a drive without your say-so. For a shopper, the label is a small but telling detail: it means the developer has done the integration work, and the game's best moments will be easy to find, cut and share rather than lost somewhere in a long recording.
