The ability to control achievement acquisition in Steam games concerns preventing the unlocking of in-game milestones, even when the criteria for earning them have been met. This control is not a native function offered universally by the Steam platform or individual game titles.
For some players, maintaining a particular profile aesthetic, preventing spoilers, or avoiding unwanted completionist tendencies may drive the desire to manage achievement progress. Historically, this control was largely unavailable, leading users to explore third-party tools and workarounds.