diff --git a/src/App.tsx b/src/App.tsx
index 42838c1..f2c3df6 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -40,6 +40,7 @@ function App() {
     handleGameAction,
     handleDlcConfirm,
     handleGameEdit,
+    handleUpdateDlcs,
     settingsDialog,
     handleSettingsOpen,
     handleSettingsClose,
@@ -107,13 +108,17 @@ function App() {
         <DlcSelectionDialog
           visible={dlcDialog.visible}
           gameTitle={dlcDialog.gameTitle}
+          gameId={dlcDialog.gameId}
           dlcs={dlcDialog.dlcs}
           isLoading={dlcDialog.isLoading}
           isEditMode={dlcDialog.isEditMode}
+          isUpdating={dlcDialog.isUpdating}
           loadingProgress={dlcDialog.progress}
           estimatedTimeLeft={dlcDialog.timeLeft}
+          newDlcsCount={dlcDialog.newDlcsCount}
           onClose={handleDlcDialogClose}
           onConfirm={handleDlcConfirm}
+          onUpdate={handleUpdateDlcs}
         />
 
         {/* Settings Dialog */}
diff --git a/src/components/dialogs/DlcSelectionDialog.tsx b/src/components/dialogs/DlcSelectionDialog.tsx
index 8276b77..57e2bc8 100644
--- a/src/components/dialogs/DlcSelectionDialog.tsx
+++ b/src/components/dialogs/DlcSelectionDialog.tsx
@@ -6,17 +6,22 @@ import DialogFooter from './DialogFooter'
 import DialogActions from './DialogActions'
 import { Button, AnimatedCheckbox } from '@/components/buttons'
 import { DlcInfo } from '@/types'
+import { Icon, check } from '@/components/icons'
 
 export interface DlcSelectionDialogProps {
   visible: boolean
   gameTitle: string
+  gameId: string
   dlcs: DlcInfo[]
   onClose: () => void
   onConfirm: (selectedDlcs: DlcInfo[]) => void
+  onUpdate?: (gameId: string) => void
   isLoading: boolean
   isEditMode?: boolean
+  isUpdating?: boolean
   loadingProgress?: number
   estimatedTimeLeft?: string
+  newDlcsCount?: number
 }
 
 /**
@@ -27,13 +32,17 @@ export interface DlcSelectionDialogProps {
 const DlcSelectionDialog = ({
   visible,
   gameTitle,
+  gameId,
   dlcs,
   onClose,
   onConfirm,
+  onUpdate,
   isLoading,
   isEditMode = false,
+  isUpdating = false,
   loadingProgress = 0,
   estimatedTimeLeft = '',
+  newDlcsCount = 0,
 }: DlcSelectionDialogProps) => {
   // State for DLC management
   const [selectedDlcs, setSelectedDlcs] = useState<DlcInfo[]>([])
@@ -169,13 +178,13 @@ const DlcSelectionDialog = ({
         </div>
       </div>
 
-      {isLoading && loadingProgress > 0 && (
+      {(isLoading || isUpdating) && loadingProgress > 0 && (
         <div className="dlc-loading-progress">
           <div className="progress-bar-container">
             <div className="progress-bar" style={{ width: `${loadingProgress}%` }} />
           </div>
           <div className="loading-details">
-            <span>Loading DLCs: {loadingProgress}%</span>
+            <span>{isUpdating ? 'Updating DLC list' : 'Loading DLCs'}: {loadingProgress}%</span>
             {estimatedTimeLeft && (
               <span className="time-left">Est. time left: {estimatedTimeLeft}</span>
             )}
@@ -211,15 +220,36 @@ const DlcSelectionDialog = ({
       </DialogBody>
 
       <DialogFooter>
+        {/* Show update results if we found new DLCs */}
+        {newDlcsCount > 0 && !isUpdating && (
+          <div className="dlc-update-results">
+            <span className="update-success-message">
+              <Icon name={check} size="sm" variant="solid" className="dlc-update-icon" /> Found {newDlcsCount} new DLC{newDlcsCount > 1 ? 's' : ''}!
+            </span>
+          </div>
+        )}
+        
         <DialogActions>
           <Button
             variant="secondary"
             onClick={onClose}
-            disabled={isLoading && loadingProgress < 10}
+            disabled={(isLoading || isUpdating) && loadingProgress < 10}
           >
             Cancel
           </Button>
-          <Button variant="primary" onClick={handleConfirm} disabled={isLoading}>
+          
+          {/* Update button - only show in edit mode */}
+          {isEditMode && onUpdate && (
+            <Button
+              variant="warning"
+              onClick={() => onUpdate(gameId)}
+              disabled={isLoading || isUpdating}
+            >
+              {isUpdating ? 'Updating...' : 'Update DLC List'}
+            </Button>
+          )}
+          
+          <Button variant="primary" onClick={handleConfirm} disabled={isLoading || isUpdating}>
             {actionButtonText}
           </Button>
         </DialogActions>
@@ -228,4 +258,4 @@ const DlcSelectionDialog = ({
   )
 }
 
-export default DlcSelectionDialog
+export default DlcSelectionDialog
\ No newline at end of file
diff --git a/src/contexts/AppContext.tsx b/src/contexts/AppContext.tsx
index 9f4232e..10b0f0f 100644
--- a/src/contexts/AppContext.tsx
+++ b/src/contexts/AppContext.tsx
@@ -1,6 +1,7 @@
 import { createContext } from 'react'
 import { Game, DlcInfo } from '@/types'
 import { ActionType } from '@/components/buttons/ActionButton'
+import { DlcDialogState } from '@/hooks/useDlcManager'
 
 // Types for context sub-components
 export interface InstallationInstructions {
@@ -10,17 +11,6 @@ export interface InstallationInstructions {
   dlc_count?: number
 }
 
-export interface DlcDialogState {
-  visible: boolean
-  gameId: string
-  gameTitle: string
-  dlcs: DlcInfo[]
-  isLoading: boolean
-  isEditMode: boolean
-  progress: number
-  timeLeft?: string
-}
-
 export interface ProgressDialogState {
   visible: boolean
   title: string
@@ -49,6 +39,7 @@ export interface AppContextType {
   dlcDialog: DlcDialogState
   handleGameEdit: (gameId: string) => void
   handleDlcDialogClose: () => void
+  handleUpdateDlcs: (gameId: string) => Promise<void>
 
   // Game actions
   progressDialog: ProgressDialogState
@@ -74,4 +65,4 @@ export interface AppContextType {
 }
 
 // Create the context with a default value
-export const AppContext = createContext<AppContextType | undefined>(undefined)
+export const AppContext = createContext<AppContextType | undefined>(undefined)
\ No newline at end of file
diff --git a/src/contexts/AppProvider.tsx b/src/contexts/AppProvider.tsx
index df09bd5..12e1e4f 100644
--- a/src/contexts/AppProvider.tsx
+++ b/src/contexts/AppProvider.tsx
@@ -25,6 +25,7 @@ export const AppProvider = ({ children }: AppProviderProps) => {
     handleDlcDialogClose: closeDlcDialog,
     streamGameDlcs,
     handleGameEdit,
+    handleUpdateDlcs,
   } = useDlcManager()
 
   const {
@@ -220,6 +221,7 @@ export const AppProvider = ({ children }: AppProviderProps) => {
       handleGameEdit(gameId, games)
     },
     handleDlcDialogClose: closeDlcDialog,
+    handleUpdateDlcs: (gameId: string) => handleUpdateDlcs(gameId),
 
     // Game actions
     progressDialog,
diff --git a/src/hooks/useDlcManager.ts b/src/hooks/useDlcManager.ts
index f403bac..4be1468 100644
--- a/src/hooks/useDlcManager.ts
+++ b/src/hooks/useDlcManager.ts
@@ -11,10 +11,12 @@ export interface DlcDialogState {
   enabledDlcs: string[]
   isLoading: boolean
   isEditMode: boolean
+  isUpdating: boolean
   progress: number
   progressMessage: string
   timeLeft: string
   error: string | null
+  newDlcsCount: number
 }
 
 /**
@@ -36,10 +38,12 @@ export function useDlcManager() {
     enabledDlcs: [],
     isLoading: false,
     isEditMode: false,
+    isUpdating: false,
     progress: 0,
     progressMessage: '',
     timeLeft: '',
     error: null,
+    newDlcsCount: 0,
   })
 
   // Set up event listeners for DLC streaming
@@ -80,6 +84,7 @@ export function useDlcManager() {
               setDlcDialog((prev) => ({
                 ...prev,
                 isLoading: false,
+                isUpdating: false,
               }))
 
               // Reset fetch state
@@ -177,10 +182,12 @@ export function useDlcManager() {
         enabledDlcs: [],
         isLoading: true,
         isEditMode: true,
+        isUpdating: false,
         progress: 0,
         progressMessage: 'Reading DLC configuration...',
         timeLeft: '',
         error: null,
+        newDlcsCount: 0,
       })
 
       // Always get a fresh copy from the config file
@@ -302,6 +309,54 @@ export function useDlcManager() {
     }
   }, [dlcDialog.dlcs, dlcDialog.enabledDlcs])
 
+  // Function to update DLC list (refetch from Steam API)
+  const handleUpdateDlcs = async (gameId: string) => {
+    try {
+      // Store current app IDs to identify new DLCs later
+      const currentAppIds = new Set(dlcDialog.dlcs.map((dlc) => dlc.appid))
+
+      // Set updating state and clear DLCs
+      setDlcDialog((prev) => ({
+        ...prev,
+        isUpdating: true,
+        isLoading: true,
+        progress: 0,
+        progressMessage: 'Checking for new DLCs...',
+        newDlcsCount: 0,
+        dlcs: [], // Clear current DLCs to start fresh
+      }))
+
+      // Mark that we're fetching DLCs for this game
+      setIsFetchingDlcs(true)
+      activeDlcFetchId.current = gameId
+
+      // Start streaming DLCs
+      await streamGameDlcs(gameId)
+      
+      // After streaming, calculate new DLCs
+      // This will be done when progress reaches 100% in the listener
+      setTimeout(() => {
+        setDlcDialog((prev) => {
+          const actualNewCount = prev.dlcs.filter(dlc => !currentAppIds.has(dlc.appid)).length
+          
+          return {
+            ...prev,
+            newDlcsCount: actualNewCount > 0 ? actualNewCount : 0,
+          }
+        })
+      }, 1000)
+      
+    } catch (error) {
+      console.error('Error updating DLCs:', error)
+      setDlcDialog((prev) => ({
+        ...prev,
+        error: `Failed to update DLCs: ${error}`,
+        isLoading: false,
+        isUpdating: false,
+      }))
+    }
+  }
+
   return {
     dlcDialog,
     setDlcDialog,
@@ -309,6 +364,7 @@ export function useDlcManager() {
     streamGameDlcs,
     handleGameEdit,
     handleDlcDialogClose,
+    handleUpdateDlcs,
     forceReload,
   }
-}
+}
\ No newline at end of file
diff --git a/src/styles/components/dialogs/_dlc_dialog.scss b/src/styles/components/dialogs/_dlc_dialog.scss
index 62c8123..36449c6 100644
--- a/src/styles/components/dialogs/_dlc_dialog.scss
+++ b/src/styles/components/dialogs/_dlc_dialog.scss
@@ -154,6 +154,28 @@
   color: var(--text-secondary);
 }
 
+// Update results message
+.dlc-update-results {
+  padding: 0.75rem 1.5rem;
+  background-color: var(--elevated-bg);
+  border: 1px solid var(--border-soft);
+  border-radius: var(--radius-sm);
+  margin-bottom: 0.75rem;
+
+  .update-success-message {
+    color: var(--text-primary);
+    font-weight: 600;
+    font-size: 0.9rem;
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+
+    .dlc-update-icon {
+      color: var(--success);
+    }
+  }
+}
+
 // Game information in DLC dialog
 .dlc-game-info {
   display: flex;