How many people are playing This World Unknown right now?

This World Unknown is app 521540 on Steam. Player counts appear once the tracker has sampled it.

What is the all-time peak player count of This World Unknown?

1 concurrent players on Aug 2026.

This World Unknown was released on Steam on 2 Sep 2016.

Every depot recorded for this app, sized by its current public manifest.

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Depot ID	Name	Platform	Language	Size on disk	Download size	Current manifest	Status
521541	—	All platforms	—	643 MB	527 MB