How many people are playing Big Sister right now?

Big Sister is app 5206420 on Steam. Player counts appear once the tracker has sampled it.

When was Big Sister released on Steam?

Big Sister was released on Steam on 20 Sep 2026.

Big Sister

No announcements yet · from Big Sister’s Steam news feed

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This developer has not posted announcements to Steam, or we have not read their feed yet.

Announcements are the developer’s own posts to the game’s Steam news feed: updates and their patch notes, in-game events, releases and sales. The important ones are marked on the players chart.