THE SHORT VERSION
- S-Game marked Phantom Blade Zero's 29 October launch with a Steam post titled Reason and Madness, announcing a day-one patch of roughly 5 GB on PC and 2 GB on PS5, where it installs as version 1.301.524.S-Game 在 10 月 29 日发售当天于 Steam 发布题为《Reason and Madness》的公告，宣布首日补丁在 PC 上约 5GB、在 PS5 上约 2GB，PS5 版本号为 1.301.524。
- IGN reports the patch improves ray tracing and path tracing and reworks rasterisation so the art direction holds with ray tracing off; S-Game also encourages handheld and lower-end PC testing.据 IGN，补丁提升了光线追踪与路径追踪表现，并重做光栅化，使关闭光追后美术风格依然成立；S-Game 同时鼓励玩家在掌机与低配 PC 上尝试。
- The studio says Nvidia's 621.01 driver has unstable performance in the game and recommends rolling back to 617.42 with a clean install until Nvidia ships its next driver, which PC Gamer notes has no announced date.工作室称 Nvidia 621.01 版驱动在本作中存在性能不稳定，建议清洁安装并回退到 617.42，直到 Nvidia 推出下一版驱动；PC Gamer 指出下一版驱动尚无时间表。
A 5 GB update that is mostly about light5GB 的更新，重点在光照
Phantom Blade Zero released on 29 October 2026, and S-Game marked the day with a Steam post titled "Reason and Madness" that walks through the studio's earlier projects before arriving at three practical notices. The first is the day-one patch. S-Game puts it at roughly 5 GB on PC; IGN reports 2 GB on PlayStation 5, where it installs as version 1.301.524. Anyone who pre-loaded has to download it before launching, and anyone who did not pre-load receives the same build with the purchase.《影之刃零》于 2026 年 10 月 29 日发售，S-Game 当天在 Steam 发布了一篇题为《Reason and Madness》的公告，先回顾工作室早年的项目，再给出三条实用通知。第一条就是首日补丁。S-Game 给出的 PC 体积约为 5GB；据 IGN，PS5 上约为 2GB，版本号为 1.301.524。已经预载的玩家需要在启动前下载安装，没有预载的玩家购买后拿到的就是含补丁的版本。
The notes are narrow and rendering-focused. IGN says the update improves ray tracing and path tracing, and that it reworks rasterisation so the art direction still reads with ray tracing switched off; the studio's wording is that the rasterisation work keeps "the scene's art style perfectly conveyed, even with ray tracing disabled." That second half is the part that applies to most PCs, because ray tracing is the optional expensive path and rasterisation is what runs without it. Neither report publishes a frame-rate comparison for either path.补丁说明范围很窄，集中在渲染上。IGN 称这次更新提升了光线追踪与路径追踪表现，并重做了光栅化，使关闭光追后美术方向依然成立；工作室的原话是光栅化工作让“即使关闭光线追踪，场景的美术风格也能被完整传达”。后半句才是对大多数 PC 玩家有效的部分，因为光追是可选的昂贵路径，光栅化则是不开光追时实际运行的路径。两份报道都没有给出任何一种路径的帧率对比。
One driver version, named and avoided点名一个驱动版本：621.01
The second notice is the one that travelled. IGN quotes S-Game saying, "We found that Nvidia's latest driver 621.01 has some unstable performance issues," and PC Gamer records the recommendation in full: "Based on our testing, version 617.42 currently offers the best experience in Phantom Blade Zero. If you've installed a driver newer than 617.42, we recommend rolling back to 617.42 and choosing the clean installation option. Please stay on this version until Nvidia releases its next driver update, which we expect to arrive soon."第二条通知传播得最远。IGN 引述 S-Game 的话说：“我们发现 Nvidia 最新的 621.01 版驱动存在一些不稳定性能问题”；PC Gamer 则完整记录了这条建议：“根据我们的测试，617.42 版目前在《影之刃零》中提供最佳体验。如果你安装的是比 617.42 更新的驱动，我们建议回退到 617.42，并选择清洁安装选项。请停留在这一版本，直到 Nvidia 发布下一版驱动更新——我们预计它很快就会到来。”
Nvidia's 621.01 Game Ready Driver shipped on Wednesday 21 October, PC Gamer reports, and was presented partly as better support for DLSS and ray tracing in Phantom Blade Zero, Call of Duty: Modern Warfare 4 and NBA 2K27. The driver that was meant to help this game is therefore the one its developer now says to avoid. PC Gamer is explicit that S-Game does not explain what goes wrong, only that the older version gives a better experience, so the size of the problem is unknown.据 PC Gamer，Nvidia 的 621.01 Game Ready 驱动于 10 月 21 日星期三发布，其宣传点之一就是为《影之刃零》《使命召唤：现代战争 4》和《NBA 2K27》等游戏更好地支持 DLSS 与光追。也就是说，本该帮助这款游戏的驱动，现在被开发商点名建议避开。PC Gamer 明确指出，S-Game 没有解释具体哪里出了问题，只说旧版本体验更好，因此问题规模仍然未知。
Rolling back takes a few minutes回退驱动只需要几分钟
PC Gamer lays out both routes. Through the Nvidia App: open it, click Drivers, scroll down to the version you want, click the three dots beside that entry and install. Without the app: open Device Manager, expand Display Adapters, right-click the graphics card, choose Properties, go to the Driver tab and roll back from there. Neither route costs anything, and the version you want stays listed in the app's driver history.PC Gamer 给出了两条路径。通过 Nvidia App：打开应用，点击“驱动”，向下滚动到想回到的版本，点该条目侧边的三个点，然后安装。不用应用的话：打开设备管理器，展开“显示适配器”，右键显卡，选择“属性”，切到“驱动”选项卡，在那里执行回退。两条路径都不花钱，想回到的版本也仍列在应用的驱动历史里。
The studio asks for a clean installation, which drops the previous driver's settings, and asks players to hold at 617.42 until Nvidia ships the next release. Neither source says when that is. PC Gamer reports there is no timeline yet and that S-Game expects one soon, which is the studio's expectation rather than an Nvidia commitment. Someone who is not playing this week can wait for the next driver instead of rolling back and then updating again.工作室要求做清洁安装，也就是丢弃上一版驱动的设置，并要求玩家停留在 617.42，直到 Nvidia 发布下一个版本。两份来源都没有说明那是什么时候。PC Gamer 报道说目前没有时间表，而 S-Game 预计很快——这是工作室的预期，不是 Nvidia 的承诺。本周不打算开玩的玩家，可以直接等下一版驱动，而不必先回退再升级一次。
The advice changed within days of launch发售前几天，建议正好相反
PC Gamer describes the reversal plainly: "Yes, that's the opposite of developer S-Game's pre-launch advice." Recommending the newest driver before a large release is the standard move, and S-Game made it, then pointed the other way on launch day. Changes of this kind are common when a launch build and a driver land in the same week, because neither the studio nor the driver team has finished testing one against the other. What is unusual is the placement, since the studio put the warning on the same Steam page as the patch rather than leaving it to players to find.PC Gamer 把这次反转说得很直白：“是的，这正好与 S-Game 发售前的建议相反。”在大作发售前推荐更新到最新驱动是常规做法，S-Game 也这么建议过，然后在发售当天指向了相反的答案。这类反复在发售版本与驱动同一周落地时很常见，因为工作室和驱动团队都还没完成对彼此的测试。真正少见的是位置：工作室把警告放在与补丁同一条 Steam 公告里，而不是留给玩家自己去发现。
What the two reports do not contain is the mechanism. There is no frame-time capture, no list of affected GPUs, no note on whether the instability sits in ray tracing, DLSS frame generation or something else, and no comment from Nvidia. Without that, a reader cannot tell whether the problem is a stutter, a crash or a drop in one scene. The recommendation is still actionable, but it is advice without a diagnosis, and treating it as a verdict on the driver as a whole would go past what either outlet reports.两份报道都没有给出机理。没有帧时间记录，没有受影响显卡的清单，没有说明不稳定出现在光追、DLSS 帧生成还是别处，也没有 Nvidia 的回应。缺少这些信息，读者无法判断问题究竟是卡顿、崩溃，还是某个场景的掉帧。这条建议依然可执行，但它是一条没有诊断的建议；把它当成对整个驱动的判决，就超出了两家媒体所报道的范围。
Handhelds: tested, but not yet Verified掌机：测试过，但还没拿到认证
The third notice is an invitation to try the game on handhelds and on lower-end and mid-range PCs, which IGN ties to the rasterisation work. IGN adds that Phantom Blade Zero is not yet Steam Deck Verified by Valve, and that S-Game says handheld devices were "extensively tested", which suggests the verification step is close without confirming it. IGN's own phrasing is that verification is likely just around the corner.第三条通知是鼓励玩家在掌机和低端、中端 PC 上尝试本作，IGN 把这一点与光栅化的工作联系起来。IGN 补充说，《影之刃零》尚未通过 Valve 的 Steam Deck 认证，而 S-Game 表示掌机设备经过了“大量测试”，这暗示认证可能不远，但并没有确认。IGN 自己的说法是，认证大概就在眼前。
The distinction matters when you are deciding what to install on. "Extensively tested" is the developer's claim about its own build; Verified is Valve's label, awarded after Valve's own checks, and it covers input, text size and suspend behaviour as well as frame rate. A patch that improves rasterised lighting can make a handheld session better without moving that label. Neither report says whether a dedicated preset exists or which settings it uses.在决定装到哪台机器上时，这个区别很重要。“大量测试”是开发商对自己版本的陈述；Verified 是 Valve 的标签，要经过 Valve 自己的检查，除了帧率还覆盖输入、字号与休眠行为。一次改善光栅光照的补丁可以让掌机体验变好，却不会让这个标签移动。两份报道都没有说明是否存在专门的预设，也没有说明它用哪些设置。
What neither report answers两份报道都没有回答的问题
Several things a buyer would want are absent from both reports: how much faster 617.42 actually is, which scenes degrade on 621.01, whether the problem affects every RTX card or a subset, and what Nvidia says about it. There is also no word on whether the PlayStation 5 build has an equivalent issue, though a console has no driver layer for players to manage and its patch is the smaller of the two.有几件买家想知道的事，两份报道里都没有：617.42 到底快多少、621.01 在哪些场景下变差、问题是影响所有 RTX 显卡还是一部分、以及 Nvidia 怎么说。也没有任何消息说明 PS5 版本是否有同类问题——不过主机没有供玩家管理的驱动层，而它的补丁是两者中较小的那个。
This site's earlier file covers the launch rather than the patch: the launch-day report handles concurrent players and the sales estimates, which is a separate event from this one. Valve's position on AI clones and Epic's account of AI-assisted engine work cover the platform and tooling side of PC development. The practical summary is short: install the 5 GB update, check the driver version, and roll back only if you are on 621.01 or newer.站内此前的稿件覆盖的是发售而非补丁：发售日报道处理的是同时在线人数与销量估算，与本篇是两个不同事件。Valve 对 AI 克隆游戏的态度和 Epic 谈 AI 参与引擎开发覆盖的是 PC 开发的平台与工具一侧。实用结论很短：装上 5GB 更新，检查驱动版本，只有当你用的是 621.01 或更新版本时才需要回退。
Sources & reporting limits来源与核查范围
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