diff --git a/backend/src/db.js b/backend/src/db.js
index 3314ba3..fe4d442 100644
--- a/backend/src/db.js
+++ b/backend/src/db.js
@@ -605,28 +605,51 @@ async function findCustomItemById(id) {
   }
 }
 
-async function getCustomItemUsageMap() {
-  const rows = await query('SELECT groups_json, pool_json FROM tierlists')
+async function getCustomItemUsageMeta() {
+  const rows = await query(
+    `
+      SELECT t.game_id, g.name AS game_name, t.groups_json, t.pool_json
+      FROM tierlists t
+      LEFT JOIN games g ON g.id = t.game_id
+    `
+  )
   const usageMap = new Map()
+  const linkedGamesMap = new Map()
 
   rows.forEach((row) => {
     const groups = parseJson(row.groups_json, [])
     const pool = parseJson(row.pool_json, [])
+    const seenItemIds = new Set()
 
     groups.forEach((group) => {
       ;(group?.itemIds || []).forEach((itemId) => {
         usageMap.set(itemId, (usageMap.get(itemId) || 0) + 1)
+        if (itemId) seenItemIds.add(itemId)
       })
     })
 
     pool.forEach((item) => {
       if (item?.id) {
         usageMap.set(item.id, (usageMap.get(item.id) || 0) + 1)
+        seenItemIds.add(item.id)
       }
     })
+
+    if (!row.game_id) return
+
+    seenItemIds.forEach((itemId) => {
+      if (!linkedGamesMap.has(itemId)) linkedGamesMap.set(itemId, new Map())
+      linkedGamesMap.get(itemId).set(row.game_id, {
+        id: row.game_id,
+        name: row.game_name || row.game_id,
+      })
+    })
   })
 
-  return usageMap
+  return {
+    usageMap,
+    linkedGamesMap: new Map(Array.from(linkedGamesMap.entries()).map(([itemId, gameMap]) => [itemId, Array.from(gameMap.values())])),
+  }
 }
 
 async function listCustomItems({ queryText = '', page = 1, limit = 50, orphanOnly = false } = {}) {
@@ -655,7 +678,7 @@ async function listCustomItems({ queryText = '', page = 1, limit = 50, orphanOnl
     params
   )
 
-  const usageMap = await getCustomItemUsageMap()
+  const { usageMap, linkedGamesMap } = await getCustomItemUsageMeta()
   const allItems = rows
     .map((row) => ({
       id: row.id,
@@ -666,6 +689,7 @@ async function listCustomItems({ queryText = '', page = 1, limit = 50, orphanOnl
       ownerName: row.nickname || row.email,
       ownerEmail: row.email,
       usageCount: usageMap.get(row.id) || 0,
+      linkedGames: linkedGamesMap.get(row.id) || [],
     }))
     .filter((item) => (orphanOnly ? item.usageCount === 0 : true))
 
@@ -705,7 +729,7 @@ async function findUnusedCustomItems({ queryText = '' } = {}) {
     params
   )
 
-  const usageMap = await getCustomItemUsageMap()
+  const { usageMap } = await getCustomItemUsageMeta()
   return rows
     .map((row) => ({
       id: row.id,
diff --git a/docs/update.md b/docs/update.md
index 642c224..2a476c4 100644
--- a/docs/update.md
+++ b/docs/update.md
@@ -1,5 +1,9 @@
 # 업데이트 로그
 
+## 2026-03-31 v1.2.59
+- 관리자 아이템 상세 모달의 게임 선택을 전용 상태로 분리해 기본 선택값이 비어 있도록 바꾸고, 썸네일 아래에 배치해 정보/액션과 시각적으로 분리함.
+- 커스텀 아이템이 실제로 사용 중인 게임 목록을 백엔드에서 함께 내려주고, 템플릿 요청 생성 폼에는 게임 ID와 게임 이름 라벨을 추가해 구분을 명확히 함.
+
 ## 2026-03-31 v1.2.58
 - 관리자 아이템 관리 카드를 썸네일과 제목만 보이는 compact 카드로 줄여, 대량 업로드된 이미지도 훨씬 높은 밀도로 탐색할 수 있게 정리함.
 - 카드 클릭 시 상세 정보를 모달로 열고 이미지 다운로드, 기본 템플릿 추가, 삭제를 모달 안에서 결정하는 흐름으로 바꿈.
diff --git a/frontend/src/views/AdminView.vue b/frontend/src/views/AdminView.vue
index e06bb02..46cc143 100644
--- a/frontend/src/views/AdminView.vue
+++ b/frontend/src/views/AdminView.vue
@@ -29,6 +29,7 @@ const customItemLimit = ref(50)
 const customItemTotal = ref(0)
 const customItemOrphanOnly = ref(false)
 const customItemTargetGameId = ref('')
+const customItemModalTargetGameId = ref('')
 
 const adminTierLists = ref([])
 const adminTierListQuery = ref('')
@@ -230,9 +231,6 @@ function setTab(tab) {
   if (tab === 'tierlists') {
     tierlistsMode.value = 'requests'
   }
-  if (tab === 'items' && !customItemTargetGameId.value && games.value.length) {
-    customItemTargetGameId.value = games.value[0].id
-  }
 }
 
 function setTierlistsMode(mode) {
@@ -260,9 +258,6 @@ async function refreshGames() {
   try {
     const data = await api.listGames()
     games.value = data.games || []
-    if (!customItemTargetGameId.value && games.value.length) {
-      customItemTargetGameId.value = games.value[0].id
-    }
     featuredGameIds.value = games.value
       .filter((game) => game.displayRank != null)
       .sort((a, b) => a.displayRank - b.displayRank)
@@ -860,12 +855,14 @@ function moveCustomItemPage(direction) {
 
 function openCustomItemModal(item) {
   modalTargetCustomItem.value = item || null
+  customItemModalTargetGameId.value = ''
   customItemModalOpen.value = true
 }
 
 function closeCustomItemModal() {
   customItemModalOpen.value = false
   modalTargetCustomItem.value = null
+  customItemModalTargetGameId.value = ''
 }
 
 function openCustomItemDeleteModal(item) {
@@ -917,16 +914,16 @@ async function removeUnusedCustomItems() {
 
 async function promoteCustomItem(item) {
   resetMessages()
-  if (!customItemTargetGameId.value) {
+  if (!customItemModalTargetGameId.value) {
     error.value = '가져올 게임을 먼저 선택해주세요.'
     return
   }
 
   try {
     item.isPromoting = true
-    await api.promoteAdminCustomItem(item.id, { gameId: customItemTargetGameId.value })
-    const targetGameName = games.value.find((game) => game.id === customItemTargetGameId.value)?.name || customItemTargetGameId.value
-    if (selectedGameId.value === customItemTargetGameId.value) await loadGame()
+    await api.promoteAdminCustomItem(item.id, { gameId: customItemModalTargetGameId.value })
+    const targetGameName = games.value.find((game) => game.id === customItemModalTargetGameId.value)?.name || customItemModalTargetGameId.value
+    if (selectedGameId.value === customItemModalTargetGameId.value) await loadGame()
     closeCustomItemModal()
     success.value = `"${item.label}" 아이템을 ${targetGameName} 기본 템플릿으로 추가했어요.`
   } catch (e) {
@@ -1424,8 +1421,14 @@ async function saveFeaturedOrder() {
                 </div>
 
                 <div v-if="request.type === 'create'" class="templateRequestCard__form">
-                  <input v-model="request.draftGameId" class="input" placeholder="새 게임 ID" />
-                  <input v-model="request.draftGameName" class="input" placeholder="새 게임 이름" />
+                  <label class="templateRequestField">
+                    <span class="templateRequestField__label">게임 ID</span>
+                    <input v-model="request.draftGameId" class="input" placeholder="새 게임 ID" />
+                  </label>
+                  <label class="templateRequestField">
+                    <span class="templateRequestField__label">게임 이름</span>
+                    <input v-model="request.draftGameName" class="input" placeholder="새 게임 이름" />
+                  </label>
                 </div>
 
                 <div class="templateRequestCard__actions">
@@ -1679,7 +1682,23 @@ async function saveFeaturedOrder() {
                   <button class="btn btn--ghost btn--small" @click="closeCustomItemModal">닫기</button>
                 </div>
                 <div v-if="modalTargetCustomItem" class="customItemModal">
-                  <img class="customItemModal__image" :src="toApiUrl(modalTargetCustomItem.src)" :alt="modalTargetCustomItem.label" />
+                  <div class="customItemModal__side">
+                    <img class="customItemModal__image" :src="toApiUrl(modalTargetCustomItem.src)" :alt="modalTargetCustomItem.label" />
+                    <div class="customItemModal__selector">
+                      <span class="customItemModal__label">기본 템플릿에 추가</span>
+                      <select v-model="customItemModalTargetGameId" class="select">
+                        <option value="">게임 선택</option>
+                        <option v-for="game in games" :key="game.id" :value="game.id">{{ game.name }}</option>
+                      </select>
+                    </div>
+                    <div class="customItemModal__linked">
+                      <span class="customItemModal__label">이미 사용 중인 게임</span>
+                      <div v-if="modalTargetCustomItem.linkedGames?.length" class="customItemModal__chips">
+                        <span v-for="game in modalTargetCustomItem.linkedGames" :key="game.id" class="pill">{{ game.name }}</span>
+                      </div>
+                      <div v-else class="hint hint--tight">아직 연결된 게임이 없어요.</div>
+                    </div>
+                  </div>
                   <div class="customItemModal__body">
                     <div class="customItemModal__title">{{ modalTargetCustomItem.label }}</div>
                     <div class="customItemModal__metaList">
@@ -1688,15 +1707,9 @@ async function saveFeaturedOrder() {
                       <div class="customItemModal__metaRow"><span>사용 중</span><strong>{{ modalTargetCustomItem.usageCount }}개 티어표</strong></div>
                       <div class="customItemModal__metaRow"><span>등록일</span><strong>{{ fmt(modalTargetCustomItem.createdAt) }}</strong></div>
                     </div>
-                    <div class="modalCard__form">
-                      <select v-model="customItemTargetGameId" class="select">
-                        <option value="">기본 템플릿에 추가할 게임 선택</option>
-                        <option v-for="game in games" :key="game.id" :value="game.id">{{ game.name }}</option>
-                      </select>
-                    </div>
                     <div class="customItemModal__actions">
                       <a class="btn btn--ghost" :href="toApiUrl(modalTargetCustomItem.src)" :download="modalTargetCustomItem.label">이미지 다운로드</a>
-                      <button class="btn btn--ghost" :disabled="!customItemTargetGameId || modalTargetCustomItem.isPromoting" @click="promoteCustomItem(modalTargetCustomItem)">
+                      <button class="btn btn--ghost" :disabled="!customItemModalTargetGameId || modalTargetCustomItem.isPromoting" @click="promoteCustomItem(modalTargetCustomItem)">
                         {{ modalTargetCustomItem.isPromoting ? '추가중...' : '기본 템플릿에 추가' }}
                       </button>
                       <button class="btn btn--danger" :disabled="modalTargetCustomItem.usageCount > 0" @click="openCustomItemDeleteModal(modalTargetCustomItem)">삭제</button>
@@ -2524,10 +2537,15 @@ async function saveFeaturedOrder() {
 }
 .customItemModal {
   display: grid;
-  grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
+  grid-template-columns: minmax(200px, 240px) minmax(0, 1fr);
   gap: 18px;
   align-items: start;
 }
+.customItemModal__side {
+  display: grid;
+  gap: 12px;
+  min-width: 0;
+}
 .customItemModal__image {
   width: 100%;
   aspect-ratio: 1 / 1;
@@ -2541,6 +2559,20 @@ async function saveFeaturedOrder() {
   gap: 14px;
   min-width: 0;
 }
+.customItemModal__selector,
+.customItemModal__linked {
+  display: grid;
+  gap: 8px;
+}
+.customItemModal__label {
+  font-size: 11px;
+  color: rgba(255, 255, 255, 0.52);
+}
+.customItemModal__chips {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
 .customItemModal__title {
   font-size: 19px;
   font-weight: 900;
@@ -2861,6 +2893,14 @@ async function saveFeaturedOrder() {
   grid-template-columns: repeat(2, minmax(0, 1fr));
   gap: 10px;
 }
+.templateRequestField {
+  display: grid;
+  gap: 6px;
+}
+.templateRequestField__label {
+  font-size: 11px;
+  color: rgba(255, 255, 255, 0.52);
+}
 .templateRequestCard__actions {
   display: flex;
   gap: 10px;