🛠️ XCOM：未知敵人 更新紀錄
開發商在 Steam 發布的官方公告：修補檔、新內容與活動，依時間整理。點標題看完整內容。
2026 年 10 月
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10/2五🎉 活動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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6/26五🎉 活動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…
2022 年 2 月
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2/11五📢 公告XCOM 2: WAR OF THE CHOSEN PLAY FOR FREE
Play XCOM 2: WAR OF THE CHOSEN for FREE on Steam this weekend. Reclaim Earth from alien invaders and save humanity! XCOM 2 available to buy at a discounted price through 2/14/22 https://store.steampow…
2020 年 4 月
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4/24五📢 公告XCOM: Chimera Squad - Available Now on Steam
We’re excited to share that XCOM: Chimera Squad, an exciting new story set within the XCOM universe, is now available on Steam. To celebrate the launch, we’re offering the game at an awesome discount.…
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4/14二📢 公告XCOM: Chimera Squad, all-new story in the XCOM universe, launches April 24
Welcome to City 31, the epicenter of XCOM: Chimera Squad -- a new game set in the XCOM universe. Five years after the events of XCOM 2, humanity has driven back the Overlords and reclaimed Earth. Now …
2018 年 9 月
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9/26三🎉 活動XCOM Retrospective - Legacy Devs Livestream
https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/4128336/1b6a8012298ed451b9d061d3f6d8278ad4e31137.jpg XCOM: Enemy Unknown turns six years old on October 9. In the weeks leading up to…
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9/20四🎉 活動XCOM Retrospective Livestream
https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/9756027/7a8aad72cab7b42836dbadb5666ed6b0162b64cf.jpg XCOM: Enemy Unknown turns six years old on October 9. We're kicking off the cele…
2015 年 11 月
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11/13五📢 公告Don't Get in the Andromedon's Way in XCOM 2
http://i.imgur.com/riwpKx7.jpg "Each Andromedon sits inside of an advanced Battlesuit, which our scientists believe helps them survive Earth’s atmosphere. The Battlesuit provides tactical benefits to …
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11/13五📢 公告Don't Get in the Andromedon's Way in XCOM 2
http://i.imgur.com/riwpKx7.jpg "Each Andromedon sits inside of an advanced Battlesuit, which our scientists believe helps them survive Earth’s atmosphere. The Battlesuit provides tactical benefits to …
2015 年 10 月
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10/30五📢 公告Dark Events: ADVENT Counter-Operations in XCOM 2
http://i.imgur.com/lNkm7FA.jpg We've revealed more info on Dark Events, ADVENT counter-operations in XCOM 2. You can read about them here: https://xcom.com/news/en-dark-events-advent-counter-operation…
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10/30五📢 公告Dark Events: ADVENT Counter-Operations in XCOM 2
http://i.imgur.com/lNkm7FA.jpg We've revealed more info on Dark Events, ADVENT counter-operations in XCOM 2. You can read about them here: https://xcom.com/news/en-dark-events-advent-counter-operation…
2015 年 9 月
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9/11五📢 公告Pre-purchase XCOM 2, get the Resistance Warrior Pack
https://downloads.2kgames.com/xcom2/blog_images/XCOM2_resistance_warrior_pack_thm.jpg RESISTANCE WARRIOR PACK "Customize your squad of resistance fighters with bonus outfits, headgear, and custom faci…
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9/11五📢 公告Pre-purchase XCOM 2, get the Resistance Warrior Pack
https://downloads.2kgames.com/xcom2/blog_images/XCOM2_resistance_warrior_pack_thm.jpg RESISTANCE WARRIOR PACK "Customize your squad of resistance fighters with bonus outfits, headgear, and custom faci…
2015 年 6 月
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6/1一📢 公告Reclaim the Earth in XCOM 2 this November
2K Announces XCOM® 2 in Development at Firaxis Games Sequel to critically-acclaimed XCOM: Enemy Unknown introduces a new world order where aliens rule Earth and XCOM must fight to save humanity Join t…
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6/1一📢 公告Reclaim the Earth in XCOM 2 this November
2K Announces XCOM® 2 in Development at Firaxis Games Sequel to critically-acclaimed XCOM: Enemy Unknown introduces a new world order where aliens rule Earth and XCOM must fight to save humanity Join t…
資料來源：Steam 官方公告（每 6～24 小時更新）。標題與摘要版權屬於原開發商。