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.

When was This World Unknown released on Steam?

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

Status

SteamPeaks

This World Unknown

GameApp ID 521,540by ebi-himeReleased 2 Sep 2016

App ID521,540

Release date2 Sep 2016

Engine—

Install size643 MB

TypeGame

Last update24 Nov 2018

Steam Deck—

DLC0

Developerebi-hime

Changenumber34,833,099

Price$7.99

Packages0

Publisherebi-hime

SystemsWindows · macOS · Linux

Followers—

Depots1

Compare this game

This World Unknown

ebi-hime
Released 2 Sep 2016·App 521540

Steam user reviews

Mostly Positive

74.1%· 58 reviews

Recent —

SteamPeaks Rating

64.1 Mixed

Recent 30 days —

How it works

Last seen

Sampled 6 hours ago · not a live figure

—of peak

All-time peak

Aug 2026

Update history

A permanent record of every observed change.

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This World Unknown Update History · SteamPeaks

5 Sep 2026

07:02:13PICSPublic manifest changed+73——#34,833,099

Recorded change · 5 Sep 2026, 07:02:13 UTCView all 73

Status	Key	Previous value	New value
Added	Download size on publicdepots.521541.manifests.public.download	—	526.7 MB552327696
Added	Manifest on publicdepots.521541.manifests.public.gid	—	746963555174093465
Added	Size on disk on publicdepots.521541.manifests.public.size	—	643.2 MB674405882

Raw values