Also, this are the findings when using
otool -L
Payload/game.app/game (architecture armv7):
/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 400.9.4)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.200.5)
/usr/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.11)
/usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0)
/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation (compatibility version 150.0.0, current version 1556.0.0)
/System/Library/Frameworks/UIKit.framework/UIKit (compatibility version 1.0.0, current version 61000.0.0)
/System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices (compatibility version 1.0.0, current version 932.2.0)
/System/Library/Frameworks/CoreGraphics.framework/CoreGraphics (compatibility version 64.0.0, current version 1245.8.0)
/System/Library/Frameworks/Foundation.framework/Foundation (compatibility version 300.0.0, current version 1556.0.0)
/System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration (compatibility version 1.0.0, current version 963.200.27)
/System/Library/Frameworks/AudioToolbox.framework/AudioToolbox (compatibility version 1.0.0, current version 492.0.0)
/System/Library/Frameworks/CFNetwork.framework/CFNetwork (compatibility version 1.0.0, current version 974.2.1)
/System/Library/Frameworks/QuartzCore.framework/QuartzCore (compatibility version 1.2.0, current version 1.11.0)
/System/Library/Frameworks/OpenGLES.framework/OpenGLES (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/CoreLocation.framework/CoreLocation (compatibility version 1.0.0, current version 2245.4.104)
/System/Library/Frameworks/CoreMedia.framework/CoreMedia (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/CoreVideo.framework/CoreVideo (compatibility version 1.2.0, current version 1.5.0)
/System/Library/Frameworks/AVFoundation.framework/AVFoundation (compatibility version 1.0.0, current version 2.0.0)
/System/Library/Frameworks/Security.framework/Security (compatibility version 1.0.0, current version 58286.202.3)
/System/Library/Frameworks/GameController.framework/GameController (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/CoreMotion.framework/CoreMotion (compatibility version 1.0.0, current version 2245.4.104)
/System/Library/Frameworks/AssetsLibrary.framework/AssetsLibrary (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/WebKit.framework/WebKit (compatibility version 1.0.0, current version 606.1.36)
/System/Library/Frameworks/AddressBook.framework/AddressBook (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/UserNotifications.framework/UserNotifications (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libsqlite3.dylib (compatibility version 9.0.0, current version 274.20.0)
/System/Library/Frameworks/StoreKit.framework/StoreKit (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/ImageIO.framework/ImageIO (compatibility version 1.0.0, current version 0.0.0)
/System/Library/Frameworks/Social.framework/Social (compatibility version 1.0.0, current version 87.0.0)
/System/Library/Frameworks/Accounts.framework/Accounts (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/Photos.framework/Photos (compatibility version 1.0.0, current version 1.0.0)
Payload/game.app/game (architecture arm64):
/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 400.9.4)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.200.5)
/usr/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.11)
/usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0)
/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation (compatibility version 150.0.0, current version 1556.0.0)
/System/Library/Frameworks/UIKit.framework/UIKit (compatibility version 1.0.0, current version 61000.0.0)
/System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices (compatibility version 1.0.0, current version 932.2.0)
/System/Library/Frameworks/CoreGraphics.framework/CoreGraphics (compatibility version 64.0.0, current version 1245.8.0)
/System/Library/Frameworks/Foundation.framework/Foundation (compatibility version 300.0.0, current version 1556.0.0)
/System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration (compatibility version 1.0.0, current version 963.200.27)
/System/Library/Frameworks/AudioToolbox.framework/AudioToolbox (compatibility version 1.0.0, current version 492.0.0)
/System/Library/Frameworks/CFNetwork.framework/CFNetwork (compatibility version 1.0.0, current version 974.2.1)
/System/Library/Frameworks/QuartzCore.framework/QuartzCore (compatibility version 1.2.0, current version 1.11.0)
/System/Library/Frameworks/OpenGLES.framework/OpenGLES (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/CoreLocation.framework/CoreLocation (compatibility version 1.0.0, current version 2245.4.104)
/System/Library/Frameworks/CoreMedia.framework/CoreMedia (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/CoreVideo.framework/CoreVideo (compatibility version 1.2.0, current version 1.5.0)
/System/Library/Frameworks/AVFoundation.framework/AVFoundation (compatibility version 1.0.0, current version 2.0.0)
/System/Library/Frameworks/Security.framework/Security (compatibility version 1.0.0, current version 58286.202.3)
/System/Library/Frameworks/GameController.framework/GameController (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/CoreMotion.framework/CoreMotion (compatibility version 1.0.0, current version 2245.4.104)
/System/Library/Frameworks/AssetsLibrary.framework/AssetsLibrary (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/WebKit.framework/WebKit (compatibility version 1.0.0, current version 606.1.36)
/System/Library/Frameworks/AddressBook.framework/AddressBook (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/UserNotifications.framework/UserNotifications (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libsqlite3.dylib (compatibility version 9.0.0, current version 274.20.0)
/System/Library/Frameworks/StoreKit.framework/StoreKit (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/ImageIO.framework/ImageIO (compatibility version 1.0.0, current version 0.0.0)
/System/Library/Frameworks/Social.framework/Social (compatibility version 1.0.0, current version 87.0.0)
/System/Library/Frameworks/Accounts.framework/Accounts (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/Photos.framework/Photos (compatibility version 1.0.0, current version 1.0.0)
I can't find any reference to x86_64 or x86 at all.