BLUE REFLECTION Quartet

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Cosmos converge, into one light. The emotional stories of magical Reflectors and the bonds they form. The entire BLUE REFLECTION series combined into one!

Developer: KOEI TECMO GAMES CO., LTD.
Released: 30 Jul 2026
Price: $49.99
Platforms
Steam Deck: Verified
Languages: Japanese +3
Controller: Full
Series: KOEI TECMO GAMES CO., LTD.
Age rating: T

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Public builds

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No reading yet

Counted once we have watched for 90 days (since 21 Oct 2026)

Last 90 days · as of 27 Oct, 22:49 UTC

How this is measured

Distinct builds deployed to a game's public (default) Steam branch, as Steam's client network describes them.

Checked within minutes of each Steam change. Observed since 21 Oct 2026.

We see a game's builds only from the day we started watching it. Before that we know just the build it was on, so counts over a window are shown only for games watched for the whole window.
A build is not necessarily a content update: developers also ship fixes, and some builds change only files players never see.

Source: Steam client network (PICS), App info, public branch. Full methodology

Latest public build

4 Jun, 02:29 UTC

Build 23444832

Update posts

0 posts

Posts announcing an update, tagged or not

Last 365 days · as of 23 Oct, 13:54 UTC

How this is measured

Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.

An announcement is not a build. Developers can ship updates without a post, or post about several updates at once.
Untagged posts are recognised from their words, so a few updates are missed and a few other posts may be counted. Tagged posts are marked Patch notes on the Updates tab; recognised ones are marked Update.
Older posts are being read back through each game's history, most played games first, so months before October 2026 fill in over the coming days.

Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology

Typical gap between builds

Not enough builds yet

Public Builds

Public builds of BLUE REFLECTION Quartet, newest first
Build	Went live	After the one before	Patch notes
23444832	4 Jun, 02:29 UTC	—	None posted

From Steam’s client network, last checked 27 Oct, 22:49 UTC. Builds before 21 Oct 2026, when we started watching, aren't listed. Patch notes are the developer’s update post from an hour before to a day after the build. Not every build gets one. How we count

Earlier Updates

No update posts from before 21 Oct 2026 found yet.

Steam keeps no record of past build numbers, so before 21 Oct 2026 a game’s update history comes from its own Steam news: posts tagged as patch notes, and untagged posts that plainly announce a patch or a released update. Older posts are still being read in, most played games first. How we count

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Build

Went live

After the one before

Patch notes

23444832

4 Jun, 02:29 UTC

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None posted