diff --git a/packages/shared/src/components/GameDetailDisplay/index.tsx b/packages/shared/src/components/GameDetailDisplay/index.tsx
index e9252d574..1cd432067 100644
--- a/packages/shared/src/components/GameDetailDisplay/index.tsx
+++ b/packages/shared/src/components/GameDetailDisplay/index.tsx
@@ -1,7 +1,7 @@
 import './index.css';
 
 import { Maximize2, Smartphone, Sparkles } from 'lucide-react';
-import { type ReactElement, type ReactNode,useState } from 'react';
+import { type ReactElement, type ReactNode, useState } from 'react';
 
 /** 详情展示里素材出现的位置：hero 大图与缩略图条。 */
 export type GameDetailAssetRole = 'cover' | 'thumb';
@@ -210,6 +210,8 @@ export function GameDetailDisplay({
 }: GameDetailDisplayProps) {
   const controls = (controlsLabel ?? '').trim();
   const version = (versionLabel ?? '').trim();
+  /** 作者名由宿主解析（公开详情会按作者 ID 补查真实昵称）；空名不渲染，避免出现「由 — 制作」。 */
+  const authorName = (game.author.name ?? '').trim();
   return (
     <div
       className={['game-detail-display', className].filter(Boolean).join(' ')}
@@ -232,12 +234,14 @@ export function GameDetailDisplay({
           {rating ? (
             <div className="game-detail-hero__rating">{rating}</div>
           ) : null}
-          <div className="game-detail-hero__author">
-            <span className="game-detail-avatar">
-              {game.author.name.slice(0, 1)}
-            </span>
-            <span>由 {game.author.name} 制作</span>
-          </div>
+          {authorName ? (
+            <div className="game-detail-hero__author">
+              <span className="game-detail-avatar" aria-hidden="true">
+                {Array.from(authorName)[0]}
+              </span>
+              <span title={authorName}>由 {authorName} 制作</span>
+            </div>
+          ) : null}
           <div className="game-detail-hero__actions">
             {actions}
             {typeof game.playCount === 'number' ? (
diff --git a/src/components/game-distribution/GameDetailPage.tsx b/src/components/game-distribution/GameDetailPage.tsx
index 30666c0de..1fee3520d 100644
--- a/src/components/game-distribution/GameDetailPage.tsx
+++ b/src/components/game-distribution/GameDetailPage.tsx
@@ -38,6 +38,7 @@ import {
   VERSION_STATUS_LABEL,
   VERSION_STATUS_NEEDS_AUTHOR_ACTION,
 } from './gameVersionHistoryModel';
+import { useGameAuthorDisplayName } from './useGameAuthorName';
 import { useGameReviews } from './useGameReviews';
 
 type GameDetailPageProps = {
@@ -292,6 +293,15 @@ function GameDetailContent({
    */
   const publiclyVisible = game.status === 'published';
   const reviews = useGameReviews(game.id, canReview, publiclyVisible);
+  /**
+   * 作者展示名：公开投影只会退化成占位角色词，真实昵称按作者 ID 补查一次
+   * （见 useGameAuthorName）；查不到时给空串，展示层就不渲染「由 X 制作」那一行。
+   */
+  const authorName = useGameAuthorDisplayName(game.author);
+  const displayGame = {
+    ...game,
+    author: { ...game.author, name: authorName ?? '' },
+  };
   /** 作者视角的条目没有公开投影 `currentVersion`，可玩版本取版本历史里的已发布版本。 */
   const publishedVersion =
     ownerGame?.versions.find((item) => item.status === 'published') ?? null;
@@ -314,7 +324,7 @@ function GameDetailContent({
         <ArrowLeft /> 返回
       </button>
       <GameDetailDisplay
-        game={game}
+        game={displayGame}
         coverObjectKey={game.coverObjectKey}
         screenshotObjectKeys={game.screenshots}
         coverColor={game.coverColor}
diff --git a/src/components/game-distribution/useGameAuthorName.ts b/src/components/game-distribution/useGameAuthorName.ts
new file mode 100644
index 000000000..0b58798a0
--- /dev/null
+++ b/src/components/game-distribution/useGameAuthorName.ts
@@ -0,0 +1,69 @@
+import { useEffect, useState } from 'react';
+
+import { getPublicAuthUserById } from '../../services/authService';
+
+/**
+ * 作者展示名缺失时服务端会退化成角色词，不是用户名：
+ * api-server 的 `game_payload`（公开目录/公开详情/作者侧）写的是
+ * `author_name.as_deref().unwrap_or("创作者")`，后台行 `admin_game_payload` 写的是
+ * `unwrap_or("未知作者")`。这两个词一律当成「没有名字」，否则会把占位词当昵称渲染出来。
+ */
+const GAME_AUTHOR_PLACEHOLDER_NAMES: Record<string, true> = {
+  创作者: true,
+  未知作者: true,
+};
+
+export type GameAuthorIdentity = {
+  id?: string | null;
+  name?: string | null;
+};
+
+function isRealAuthorName(value: string | null | undefined) {
+  const name = (value ?? '').trim();
+  return name.length > 0 && GAME_AUTHOR_PLACEHOLDER_NAMES[name] !== true;
+}
+
+/**
+ * 游戏作者的对外展示名。
+ *
+ * 游戏行上的 `author_name` 由创建接口固定写空（api-server `create_game` 传 None），
+ * 所以公开投影里的 `author.name` 只会是占位角色词，不是用户名。真实昵称只能按
+ * `author.id`（owner_user_id）走公开用户查询补一次：`GET /api/auth/public-users/by-id/{userId}`，
+ * 与陶泥号查询 `/api/auth/public-users/by-code/{code}` 同一族接口，不需要登录态。
+ *
+ * 返回 `null` 表示还在查询——展示层此时不要渲染名字，避免先闪一下占位词；
+ * 返回空串表示查不到（账号失效 / 网络失败），由展示层降级。
+ * 回包名本来就是真实昵称时不再多发请求：后端补上作者名后这里自然退化为普通渲染。
+ */
+export function useGameAuthorDisplayName(
+  author: GameAuthorIdentity | null | undefined,
+): string | null {
+  const fallbackName = (author?.name ?? '').trim();
+  const hasFallbackName = isRealAuthorName(fallbackName);
+  const authorId = (author?.id ?? '').trim();
+  const [lookedUp, setLookedUp] = useState<{
+    id: string;
+    name: string;
+  } | null>(null);
+
+  useEffect(() => {
+    if (hasFallbackName || !authorId) return;
+    let alive = true;
+    void getPublicAuthUserById(authorId)
+      .then((user) => {
+        if (alive) setLookedUp({ id: authorId, name: user.displayName.trim() });
+      })
+      .catch(() => {
+        // 作者账号查不到（已失效 / 非公开）时不编造名字，按空名交给展示层降级。
+        if (alive) setLookedUp({ id: authorId, name: '' });
+      });
+    return () => {
+      alive = false;
+    };
+  }, [authorId, hasFallbackName]);
+
+  if (hasFallbackName) return fallbackName;
+  if (!authorId) return '';
+  if (!lookedUp || lookedUp.id !== authorId) return null;
+  return lookedUp.name;
+}