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On iPhone and iPad you can steer with the on-screen stick or by tilting the device. On Apple TV the Siri Remote is all you need. Any game controller that works with your Apple device works in Sliprift too, on every device. Controllers are optional, except for split-screen.

Split-screen is for 2 to 4 players on iPad or Apple TV, with a game controller for each player. Connect the controllers, then choose Multiplayer → Split-Screen. The option only appears when a controller is connected, and it isn't available on iPhone. For two players you can pick side by side or top and bottom under Settings → 2-Player Split.

Online races run on Game Center, so sign in to Game Center on your device first, then choose Multiplayer → Online:

• Quick Play finds other players for you. If nobody turns up, you can keep searching or race the AI.
• Host a lobby gives you an 8-digit invite code (like 1234-5678). Make the lobby private (invite only) or public (open places are filled by other players).
• Join with code: type the code your friend shows on screen.

Up to 8 players can race, and iPhone, iPad and Apple TV players race together. Any empty places on the grid are filled by AI rivals. If Online is unavailable, check that you're signed in to Game Center and connected to the internet.

• Put both devices on the same Wi-Fi network and make sure both have the same version of Sliprift.
• The first time you host or join, Sliprift asks to use your local network. If you said no, turn it back on: on iPhone and iPad, go to Settings → Privacy & Security → Local Network and switch on Sliprift.
• In Multiplayer → Local Network, one device hosts a race and the others join it from the list.

Not if you use iCloud. Sliprift saves your progress, unlocks, records, Garage items and coins in your own iCloud account, so they come back after a reinstall and follow you to your other iPhone, iPad and Apple TV on the same Apple Account. Your Profile shows the sync status (for example, SAVED IN ICLOUD). Without iCloud, your progress lives only on that device and is deleted with the app.

You don't need to do anything. Each time Sliprift starts, it checks with the App Store and adds any gold you bought that's missing on that device, exactly once.

With Ask to Buy, the purchase shows "Waiting for approval", and the gold arrives as soon as it's approved, even if the game is closed. If purchases are turned off in Screen Time, the game doesn't offer any. Refunds are handled by Apple: request one at reportaproblem.apple.com. Refunded gold is taken back from your balance (never below zero).

Every Grand Prix cup can be raced from the start. In single races Porto Lume is open, and each cup's tracks open as soon as you finish that cup, in any position. Split-screen and network races always have every track.

Yes. The whole game, from the menus to a full race, works with the Siri Remote alone; your kart accelerates for you and you steer with the remote. A game controller gives you finer control and is needed for split-screen. Press the Back (Menu) button to pause.

In Settings you'll find:

• Steady Horizon: steadies the camera's roll through loops and banked turns, for less motion on screen.
• Auto-accelerate, tilt sensitivity and tilt dead zone for touch players, and haptics on or off.
• Handling: arcade or realistic.
• Items: lively, or calm for a cleaner race.
• AI difficulty (Easy, Normal or Hard) and the number of laps, before each race.

Finish on the podium: 1st place earns a gold coin, 2nd a silver and 3rd a bronze. Silver and bronze exchange into gold (10 silver or 50 bronze make 1 gold). There are bonuses too, such as your first win on each track and winning a cup. Sliprift is free to play: you can also buy gold as an optional purchase, and gold only buys cosmetics.