🛠️ Opus Magnumのアップデート履歴
開発元がSteamで公開した公式告知（パッチ、新コンテンツ、イベント）を時系列でまとめています。タイトルをクリックすると全文を読めます。
2026年6月
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6/17水📢 お知らせVolume CVIII, Issue XII: Highlights from the Alchemical Exposition
Today's update adds the final issue of the Journal of Alchemical Engineering, at least for now. It also adds a new achievement, The Way of the Philosopher, for players who solve at least one puzzle in…
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6/10水📢 お知らせVolume CVIII, Issue XI: Small-Scale Construction Crafts
Today's update adds a new issue to the Journal of Alchemical Engineering. Volume CVIII, Issue XI: Small-Scale Construction Crafts While research to support the large-scale building projects initiated …
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6/3水📢 お知らせVolume CVIII, Issue X: Inside the Soria Glassworks
Today's update adds a new issue to the Journal of Alchemical Engineering. Do you have a puzzle you'd like to see included in a future issue? Submit it here: https://tally.so/r/KYDzWX Volume CVIII, Iss…
2026年5月
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5/27水📢 お知らせVolume CVIII, Issue IX: Frontiers of the Infinite
Today's update adds a new issue to the Journal of Alchemical Engineering. Do you have a puzzle you'd like to see included in a future issue? Submit it here: https://tally.so/r/KYDzWX Volume CVIII, Iss…
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5/20水📢 お知らせVolume CVIII, Issue VIII: Apothecary Roots
Today's update adds a new issue to the Journal of Alchemical Engineering. Do you have a puzzle you'd like to see included in a future issue? Submit it here: https://tally.so/r/KYDzWX Volume CVIII, Iss…
出典：Steam公式告知（6～24時間ごとに更新）。タイトルと概要の著作権は各開発元に帰属します。