Games v3.1.11.0
Does 三国 work on iPhone Duo?
It works, but with black bars. 三国：冰河时代 hasn't been updated for iPhone Duo's inner display yet, so it runs in a phone-sized window.
At a glance
- Inner display (7.6″)
- Black bars
- Outer display (5.4″)
- Works normally
- Built with
- Not read yet
- We read each app's build SDK after it updates
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v3.1.11.0
- Nov 3, 2026
- Duo in release notes
- Not yet
About 三国
三国 is made by EVISTA PTE. LTD. and first came out on the App Store in November 2024. It's only on the China App Store, where it has 24,580 ratings. Version 3.1.11.0 came out on Nov 3, 2026 and needs iOS 13.0 or later. It's free to download.
From its App Store listing:
三国时期，群雄并起，战乱不断，人们生活在被冰雪覆盖的时代。在这个世界中，玩家作为城主，抵抗寒冬，平息战乱，在寒冬条件生存下去。 [建立城市：玩转民心系统] 民心即城主的满意度，通过妥善处理居民事件增加民心。高民心可使用民心技能，城池发展先人一步！ [守卫城市：征兵买马] 建立兵营，招兵马买。 繁荣的城镇需要更强大的队伍来护卫，保卫城镇安全！ [武将助阵：阵容组合] 招募三国武将，诸葛亮，赵云，吕布听您调遣，使用不同武将组合守卫城市。 [城市扩张：州府占领] 与其他志同道合的主公占领更多州府，成为最强城主。 你的城市是否能在寒冬战乱中生存下来？ 来《三国：冰河时代》，体验前所未有的城主挑战！
On the inner display
Apps built with older SDKs are placed in a phone-sized safe area on a black background. Everything works; you just don't get the bigger screen.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including 三国. Open it on the inner display, then add a second app next to it. You can save the pair and come back to it later.
Duo-specific features
None confirmed yet. Duo-specific features include side toolbars, layouts that react to the fold, and content on the outer display while the app is open inside.
Evidence & history
App build,
Version 3.1.10.0 is built with the iOS 26.2 SDK
Apple runs apps built with the iOS 26 SDK or earlier in a phone-sized window on the inner display.
- : Not confirmed yet → Black bars — built with the iOS 26.2 SDK
Latest release notes
Version 3.1.11.0 · Nov 3, 2026
【新增内容】 1. 城防队列支持预设 2. 讨伐新增装备预设功能 3. 同盟语音新增操作引导 【优化调整】 1. 雪漫山河剧本“雪筑连营“玩法关卡难度下降 2. 三国派对增加对战记录 3. 出征集结预设队列兵力配比优化 4. 其他优化调整
Questions
Does 三国：冰河时代 work on iPhone Duo?
It works, but with black bars. 三国：冰河时代 hasn't been updated for iPhone Duo's inner display yet, so it runs in a phone-sized window.
Does 三国：冰河时代 work on the outer display?
Yes. iPhone Duo's 5.4-inch outer display behaves like a regular iPhone screen, so every iPhone app works there as usual.
Can I use 三国：冰河时代 in Split View on iPhone Duo?
Yes. On iPhone Duo every app can be placed side by side with another app on the inner display — developers don't need to opt in. How comfortable it feels at half width depends on the app's layout.
Why does 三国：冰河时代 have black bars on iPhone Duo?
Apps built with the iOS 26 SDK or earlier run in a phone-sized window on the inner display, and iOS 27 builds can still leave some space empty. The bars disappear once the developer rebuilds the app with the iOS 27.1 SDK — you only need to update the app.
When will 三国：冰河时代 fill iPhone Duo's inner display?
When its developer releases an update built with the iOS 27.1 SDK or later. We read the SDK of every new version of 三国：冰河时代 within about a day of its release and update this page.
What can I do about the black bars until then?
Use 三国：冰河时代 on the outer display, where it works like on any iPhone, or put it in Split View next to another app on the inner display so less of the screen goes unused.