🛠️ Killing Floor 2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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6/26金🎉 イベントKilling Floor 2 Summer 2026 2XP and Sale!
June 25th, 2026 - July 9th, 20262XP during sales launch Week \Summer Seasonal Cosmetic Bundles and Discounts in Game 60% - 75% Off (Steam only)!
2026年3月
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3/26木🎉 イベントKilling Floor 2 Spring 2026 2XP and Sale!
Look for hot discounts for Base Game, Digital Deluxe Edition, Armory Season Pass 1+2, and the Ultimate Edition throughout Spring! 2XP Event - All Platforms (Online Only for Console)+ Up to 75% OFF 25 …
2025年7月
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7/2水🎉 イベントThe Steam Summer Sale is on! Killing Floor 2 is 90% off!
While you wait for Killing Floor 3 (July 24th) be sure and grab Killing Floor 2 for 90% off in the Steam Summer Sale! Offer ends on July 10th!
2024年5月
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5/14火🎉 イベントKilling Floor Franchise 15 Year Anniversary
http://media.tripwirecdn.com/050324/kf15years.jpg Join us in celebrating 15 years of Killing Floor as we look into the past, and the future of the franchise, over the coming days! Do you have a favori…
2023年9月
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9/23土🎉 イベントIt's survey time! Take the Killing Floor 2 Halloween 2023 Beta Survey.
First, we appreciate you all jumping into the Killing Floor 2 Fall beta to try out the new content and QoL improvements. Now, we'd love to hear your feedback! We use this survey along with feedback th…
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。