🛠️ Batman: Arkham City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10月
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10/22木📢 お知らせLast Chance to buy your favorite DC Games up to 90% off!
‘Tis the season to celebrate the DC Super-Villains! Join the fun with a DC Game featuring your favorite DC Super-Villains. Sale ends 10/22.
2026年9月
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9/22火📢 お知らせAbsolute Mode Available Now!
Up for a challenge? Jump into Absolute Difficulty Mode today with the new Mayhem Collection DLC for LEGO® Batman™: Legacy of the Dark Knight! #LEGOBatmanGame
2026年5月
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5/28木📢 お知らせLEGO® Batman™: Legacy of the Dark Knight - Official Accolades Trailer
We've got another trophy for the Batcave, Alfred! The reviews for LEGO® Batman™: Legacy of the Dark Knight are positively heroic. Pick up your copy of #LEGOBatmanGame today:
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5/19火📢 お知らせLast Chance to Get 3 Days Advanced Access
The Bat-Signal has been lit! The clock is ticking to get advanced access to LEGO® Batman™: Legacy of the Dark Knight Deluxe Edition. Pre-order now to suit up early and be among the first to answer the…
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5/18月📢 お知らせ1 Million Wishlists on Steam!
To the Batcave - this calls for a victory lap! LEGO® Batman™: Legacy of the Dark Knight just smashed 1,000,000 wishlists on Steam. Thanks for the love, citizens of Gotham City-preorder now and Build t…
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5/16土📢 お知らせ950,000 Wishlists on Steam!
LEGO® Batman™: Legacy of the Dark Knight just hit 950,000 wishlists on Steam-Gotham City is buzzing with less than 2 weeks left until launch! Preorder now and get "The Dark Knight Returns" Batsuit ins…
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5/13水📢 お知らせLEGO® Batman™: Legacy of the Dark Knight – Official Deluxe Edition Trailer
Alfred, it’s time to open the Deluxe wing of the Batcave. Pre-order the Deluxe Edition of #LEGOBatmanGame and play early on May 19! LEGO Batman: Legacy of the Dark Knight is a brand-new open world act…
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5/8金📢 お知らせLEGO® Batman™: Legacy of the Dark Knight – Official Launch Trailer
Legends aren’t born — they're built. LEGO® Batman™: Legacy of the Dark Knight arrives May 22, 2026. Pre-order now. #LEGOBatmanGame LEGO Batman: Legacy of the Dark Knight is a brand-new open world acti…
2026年4月
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4/22水📢 お知らせLEGO® Batman™: Legacy of the Dark Knight - Henchperson Orientation
LEGO® Batman™: Legacy of the Dark Knight - Henchperson Orientation Orientation Tip: The Bat-Signal is not a welcome mat. It’s a 5-minute warning. 🦇🔦 Build the Legacy May 22, 2026. Preorder the Deluxe …
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。