How many people are playing Testimonium right now?

Testimonium is app 3953690 on Steam. Player counts appear once the tracker has sampled it.

What is the all-time peak player count of Testimonium?

0 concurrent players on 12 Sep 2026.

Testimonium was released on Steam on 31 Oct 2025.

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
3953691	—	All platforms	—	390 MB	217 MB