🛠️ Mafia: Definitive Edition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9月
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9/5土📢 お知らせMafia Family Business #5
To all friends of the Family, salutamu. Welcome to the latest installment of Mafia Family Business, a semi-regular spotlight on the Mafia community, the teams that work on the games, and the impressiv…
2026年8月
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8/14金📢 お知らせMafia: The Omertà Collection arrives August 14
August 14 will be a monumental moment for the Family, and not just because it's the launch day of the Man of Honor expansion* for Mafia: The Old Country. We're proud to introduce Mafia: The Omertà Col…
2026年6月
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6/27土📢 お知らせMafia Family Business #4
To all friends of the Family, salutamu. Welcome to the latest installment of Mafia Family Business, a semi-regular spotlight on the Mafia community, the teams that work on the games, and the impressiv…
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6/12金📢 お知らせJoin the official Mafia Discord
https://clan.fastly.steamstatic.com/images/45157904/77178f7b8ed14ab28314bbcdbd706e285a833db0.jpgIn case you missed the announcement last week, we just launched the official Mafia Discord, and you’re i…
2026年5月
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5/30土📢 お知らせMafia Family Business #3
To all friends of the Family, salutamu. Welcome to the latest installment of Mafia Family Business, a semi-regular spotlight on the Mafia community, the teams that work on the games, and the impressiv…
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5/1金📢 お知らせMafia Family Business #2
To all friends of the Family, salutamu. Welcome to the latest installment of Mafia Family Business, a semi-regular spotlight on the Mafia community and the impressive talents of our fans.Honoring the …
2026年3月
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3/25水📢 お知らせMafia Family Business #1
To all friends of the Family, salutamu. Since the launch of Mafia: The Old Country, we've been touched to see many new and longtime fans express their appreciation for the latest game and the wider Ma…
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3/20金📢 お知らせGet the "Old Country" customization decal in World of Tanks
Being part of this Family has benefits. We invite you to take advantage of our alliance with Wargaming by claiming the "Old Country" customization decal for use in World of Tanks. We've partnered with…
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。