How many people are playing Blue Book right now?

Blue Book is app 3726740 on Steam. Player counts appear once the tracker has sampled it.

Blue Book

GameApp ID 3,726,740Released —

WindowsEngine —

App ID3,726,740

Release date—

Engine—

Install size—

TypeGame

Last update7 Sep 2026

Steam Deck—

DLC0

Developer—

Changenumber37,169,082

Price—

Packages0

Publisher—

SystemsWindows

Followers—

Depots0

Blue Book

Steam user reviews

Not enough reviews yet

0 so far · summary at 10

SteamPeaks Rating

Not enough reviews yet

Rated from 10 reviews

Playing now

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First samples arriving

—of peak

All-time peak

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Tracking since the first sample

PICS config · launch options

0 launch options

No configuration keys.

Blue Book Configuration · SteamPeaks