🛠️ BioShock Infinite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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10/2金🎉 イベントCozy Up with 2K: The Autumn Sale is Live on Steam! Save Big Through Oct 8.*
https://clan.fastly.steamstatic.com/images/4128336/66a2bcaddd03b0f7481eaf24a784f4e18d4652b7.jpgAs the leaves turn and the crisp autumn air settles in, that familiar feeling returns: the golden hour af…
2026年6月
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6/26金🎉 イベントTime to Play: The 2K Summer Sale is Officially Live on Steam
The 2K Summer Sale is officially live on Steam, and it’s the perfect excuse to find your next great escape. Summer is about having the time to truly immerse yourself, dive deep into a world, and remem…
2026年3月
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3/20金🎉 イベントFresh Deals in Full Bloom: Save Big During the 2K Spring Sale
Save Big During the 2K Spring SaleShake off the winter frost and grow your library with deep discounts on 2K’s biggest hits. From legendary strategy epics to high-octane shooters, there has never been…
2026年2月
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2/6金🎉 イベント🚀 The 2K Publisher Sale* is LIVE! 🚀
The massive 2K Publisher Sale has officially started on Steam! For a limited time, grab great deals on your favorite blockbuster games and complete collections! 🔥 New Titles & Major Milestones:Dive in…
2025年12月
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12/19金🎉 イベントDeck the Halls (and Your Library): 2K Holiday Sale* is On!
Don't miss out on spectacular deals for Borderlands 4, Mafia: The Old Country, NBA 2K26, Civilization VII, Risk of Rain 2, and many more incredible 2K games. Explore 2K’s holiday sale and settle in fo…
2025年9月
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9/30火🎉 イベントThe 2K Autumn Sale!
The 2K Autumn Sale!Save 30% on Sid Meier's Civilization VIISave 80% on Mafia TrilogySave 67% on Risk of Rain 2Save 80% on BioShock : The CollectionAnd more! Don't miss out on incredible deals on 2K ti…
2025年6月
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6/27金🎉 イベントSteam Summer Sale
The 2K Summer Sale!Hot deals on hot games! Cool down with summer savings!Save 15% on Sid Meier's Civilization VII*Save 86% on NBA 2K25 Standard Edition*Save 95% on Borderlands 3*Save 80% on Mafia Tril…
2025年3月
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3/14金🎉 イベントThe 2K Spring Sale!
Don't miss out on incredible 2K titles and DLC during the 2K Spring Sale! Save 90% on Sid Meier's Civilization VI Save 70% on NBA 2K25 Standard Edition Save 67% on Risk of Rain 2 Also save big on the …
2024年11月
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11/28木🎉 イベントGet deep discounts on 2K's biggest games in the latest Steam sale
This holiday season, save big on a bunch of 2K's best games! Enjoy discounted hits like the Borderlands Collection: Pandora's Box, Risk of Rain 2, Mafia: Trilogy, and much more! 2K Steam Autumn Sale *…
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。