diff --git a/Delta.xcodeproj/project.pbxproj b/Delta.xcodeproj/project.pbxproj
index 4f7178d..dff663f 100644
--- a/Delta.xcodeproj/project.pbxproj
+++ b/Delta.xcodeproj/project.pbxproj
@@ -109,6 +109,7 @@
 		BF9F4FD01AAD7B87004C9500 /* DeltaCore.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = BF9F4FCE1AAD7B87004C9500 /* DeltaCore.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		BFA0D1271D3AE1F600565894 /* GameViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = BF63BDE91D389EEB00FCB040 /* GameViewController.swift */; };
 		BFAA1FED1B8AA4FA00495943 /* Settings.swift in Sources */ = {isa = PBXBuildFile; fileRef = BFAA1FEC1B8AA4FA00495943 /* Settings.swift */; };
+		BFAB9F7D219A43380080EC7D /* SyncManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = BFAB9F7C219A43380080EC7D /* SyncManager.swift */; };
 		BFAB9F88219A4B670080EC7D /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = BFAB9F87219A4B670080EC7D /* GoogleService-Info.plist */; };
 		BFBAB2E31EB685A2004E0B0E /* DeltaCoreProtocol+Delta.swift in Sources */ = {isa = PBXBuildFile; fileRef = BFBAB2E21EB685A2004E0B0E /* DeltaCoreProtocol+Delta.swift */; };
 		BFC6F7B81F435BC500221B96 /* Input+Display.swift in Sources */ = {isa = PBXBuildFile; fileRef = BFC6F7B71F435BC500221B96 /* Input+Display.swift */; };
@@ -250,6 +251,7 @@
 		BF99A5961DC2F9C400468E9E /* ControllerSkinTableViewCell.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ControllerSkinTableViewCell.swift; sourceTree = "<group>"; };
 		BF9F4FCE1AAD7B87004C9500 /* DeltaCore.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = DeltaCore.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		BFAA1FEC1B8AA4FA00495943 /* Settings.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Settings.swift; sourceTree = "<group>"; };
+		BFAB9F7C219A43380080EC7D /* SyncManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SyncManager.swift; sourceTree = "<group>"; };
 		BFAB9F87219A4B670080EC7D /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
 		BFBAB2E21EB685A2004E0B0E /* DeltaCoreProtocol+Delta.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "DeltaCoreProtocol+Delta.swift"; sourceTree = "<group>"; };
 		BFC134E01AAD82460087AD7B /* SNESDeltaCore.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = SNESDeltaCore.framework; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -599,6 +601,14 @@
 			path = Settings;
 			sourceTree = "<group>";
 		};
+		BFAB9F7B219A43270080EC7D /* Syncing */ = {
+			isa = PBXGroup;
+			children = (
+				BFAB9F7C219A43380080EC7D /* SyncManager.swift */,
+			);
+			path = Syncing;
+			sourceTree = "<group>";
+		};
 		BFC9B7371CEFCD08008629BB /* Cheats */ = {
 			isa = PBXGroup;
 			children = (
@@ -677,6 +687,7 @@
 				BF7AE7FA1C2E851F00B1B5BC /* Pause Menu */,
 				BFAA1FEB1B8AA4E800495943 /* Settings */,
 				BF59426C1E09BC450051894B /* Database */,
+				BFAB9F7B219A43270080EC7D /* Syncing */,
 				BF59428C1E09BCE50051894B /* Importing */,
 				BF930FFB1EB6D6EC00E8DBA0 /* Systems */,
 				BF525EE61FF5F355004AA849 /* Deep Linking */,
@@ -973,6 +984,7 @@
 				BF13A7561D5D29B0000BB055 /* PreviewGameViewController.swift in Sources */,
 				BF6866171DCAC8B900BF2D06 /* ControllerSkin+Configuring.swift in Sources */,
 				BF59427D1E09BC830051894B /* ControllerSkin.swift in Sources */,
+				BFAB9F7D219A43380080EC7D /* SyncManager.swift in Sources */,
 				BFCEA67E1D56FF640061A534 /* UIViewControllerContextTransitioning+Conveniences.swift in Sources */,
 				BF1173501DA32CF600047DF8 /* ControllersSettingsViewController.swift in Sources */,
 				BFFC461E1D59823500AF2CC6 /* GamesPresentationController.swift in Sources */,
diff --git a/Delta/Game Selection/GamesViewController.swift b/Delta/Game Selection/GamesViewController.swift
index a186c73..0da410d 100644
--- a/Delta/Game Selection/GamesViewController.swift	
+++ b/Delta/Game Selection/GamesViewController.swift	
@@ -109,6 +109,8 @@ extension GamesViewController
         DispatchQueue.global().async {
             self.activeEmulatorCore?.stop()
         }
+        
+        SyncManager.shared.sync()
     }
     
     override func didReceiveMemoryWarning()
diff --git a/Delta/Launch/LaunchViewController.swift b/Delta/Launch/LaunchViewController.swift
index d6aa49d..d4b7de3 100644
--- a/Delta/Launch/LaunchViewController.swift
+++ b/Delta/Launch/LaunchViewController.swift
@@ -18,6 +18,8 @@ class LaunchViewController: RSTLaunchViewController
     
     private var applicationLaunchDeepLinkGame: Game?
     
+    private var didAttemptStartingSyncManager = false
+    
     override var preferredStatusBarStyle: UIStatusBarStyle {
         return self.gameViewController?.preferredStatusBarStyle ?? .lightContent
     }
@@ -51,8 +53,15 @@ extension LaunchViewController
         let isDatabaseManagerStarted = RSTLaunchCondition(condition: { DatabaseManager.shared.isStarted }) { (completionHandler) in
             DatabaseManager.shared.start(completionHandler: completionHandler)
         }
-
-        return [isDatabaseManagerStarted, isDatabaseManagerStarted]
+        
+        let isSyncingManagerStarted = RSTLaunchCondition(condition: { self.didAttemptStartingSyncManager }) { (completionHandler) in
+            SyncManager.shared.start { (error) in
+                self.didAttemptStartingSyncManager = true
+                completionHandler(nil)
+            }
+        }
+        
+        return [isDatabaseManagerStarted, isSyncingManagerStarted]
     }
     
     override func handleLaunchError(_ error: Error)
diff --git a/Delta/Settings/Syncing/SyncingServicesViewController.swift b/Delta/Settings/Syncing/SyncingServicesViewController.swift
index 34917e1..f3f972c 100644
--- a/Delta/Settings/Syncing/SyncingServicesViewController.swift
+++ b/Delta/Settings/Syncing/SyncingServicesViewController.swift
@@ -8,6 +8,8 @@
 
 import UIKit
 
+import Harmony
+
 enum SyncingService: String, CaseIterable
 {
     case none
@@ -75,6 +77,13 @@ class SyncingServicesViewController: UITableViewController
             
             self.tableView.reloadSections(IndexSet(integer: Section.service.rawValue), with: .none)
             
+            if Settings.syncingService != .none && !SyncManager.shared.isAuthenticated
+            {
+                SyncManager.shared.authenticate(presentingViewController: self) { (error) in
+                    print("Authenticated with error:", error as Any)
+                }
+            }
+            
         case .account, .signOut: break
         }
     }
diff --git a/Delta/Syncing/SyncManager.swift b/Delta/Syncing/SyncManager.swift
new file mode 100644
index 0000000..0d23887
--- /dev/null
+++ b/Delta/Syncing/SyncManager.swift
@@ -0,0 +1,87 @@
+//
+//  SyncManager.swift
+//  Delta
+//
+//  Created by Riley Testut on 11/12/18.
+//  Copyright © 2018 Riley Testut. All rights reserved.
+//
+
+import Harmony
+import Harmony_Drive
+
+final class SyncManager
+{
+    static let shared = SyncManager()
+    
+    var service: Service {
+        return self.syncCoordinator.service
+    }
+    
+    private(set) var isAuthenticated = false
+    
+    private let syncCoordinator = SyncCoordinator(service: DriveService.shared, persistentContainer: DatabaseManager.shared)
+    
+    private init()
+    {
+        DriveService.shared.clientID = "457607414709-5puj6lcv779gpu3ql43e6k3smjj40dmu.apps.googleusercontent.com"
+    }
+}
+
+extension SyncManager
+{
+    func start(completionHandler: @escaping (Error?) -> Void)
+    {
+        self.syncCoordinator.start { (result) in
+            do
+            {
+                _ = try result.verify()
+                                
+                self.syncCoordinator.service.authenticateInBackground { (result) in
+                    do
+                    {
+                        _ = try result.verify()
+                        
+                        self.isAuthenticated = true
+                    }
+                    catch let error as AuthenticationError where error.code == .noSavedCredentials
+                    {
+                        // Ignore
+                    }
+                    catch
+                    {
+                        return completionHandler(error)
+                    }
+                    
+                    completionHandler(nil)
+                }
+            }
+            catch
+            {
+                completionHandler(error)
+            }
+        }
+    }
+    
+    func authenticate(presentingViewController: UIViewController, completionHandler: @escaping (Error?) -> Void)
+    {
+        guard !self.isAuthenticated else { return completionHandler(nil) }
+        
+        self.service.authenticate(withPresentingViewController: presentingViewController) { (result) in
+            switch result
+            {
+            case .success:
+                self.isAuthenticated = true
+                completionHandler(nil)
+                
+            case .failure(let error): completionHandler(error)
+            }
+        }
+    }
+    
+    func sync()
+    {
+        guard self.isAuthenticated else { return }
+        
+        self.syncCoordinator.sync()
+    }
+}
diff --git a/External/Harmony b/External/Harmony
index 49efae9..b6541ab 160000
--- a/External/Harmony
+++ b/External/Harmony
@@ -1 +1 @@
-Subproject commit 49efae9be0ca1708b471191d45934dadf6278ca1
+Subproject commit b6541ab7931e6b8291387d9e5c46e47fc63cfdca