Valve Tests Achievement Sets to Keep New Content From Breaking Completion Status

Valve is testing a new Steam feature that could change how developers manage achievements as their games grow. The feature, called Achievement Sets, is currently in beta and lets developers organize a game's achievements into separate collections.

The problem it targets is familiar to anyone who tracks completion on Steam. When a developer adds new achievements through an update or expansion, a player's completion percentage can suddenly drop, even though they did nothing wrong. Sets give developers a way to keep newer achievements in their own group, so the original list stays stable and players can see progress on each part of the game separately.

The beta is still early, and Valve has not said how broadly the feature will roll out or how developers will set it up. Players who care about 100 percent completion will likely want to see how sets are displayed in the store and on profile pages before deciding whether it helps. For now, the feature is a sign that Valve is looking at the upkeep side of achievements, not just how they are earned.