slotc.AR lets you build virtual tracks and challenge your opponent in quick, adrenaline-paced car races, in Augmented Reality (AR) scenarios. You can play a "solo" game (vs an AI-driven car) or multiplayer, but the tactic is only one: fast in the straight, careful in turns! The basic requirement for any AR experience is the ability to create and track a correspondence between the real-world space the user inhabits and a virtual space where you can model visual content - the track. To experience the best from slotc.AR, follow these simple hints: - World tracking involves image analysis, which requires a clear image. Ensure lighting conditions are sufficient and stable (low reflection), and try to select surfaces with enough visible details. - Allow time for plane detection to produce clear results. Plane detection results vary over time: as the plane remains in the scene over time, slotc.AR refines its estimate of position and extent. In order to successfully play multi-player races, the process is a bit more involved: starting from iOS 12, an AR experience can be shared between multiple devices. The steps are listed below: 1. Run the app on the master device. You can look around the local environment, and tap to place the starting piece. 2. Run the app on a second device. On both device screens, a message indicates that they have automatically joined a shared session. 3. The other device displays a message indicating that it has received the map. Wait until the track is shown on the second device, or tap the ≷ button on the master device. Make sure the other device is in an area that the first device visited before sending the map, or has a similar view of the surrounding environment. When that process succeeds, both devices show virtual content at the same real-world positions, the track can be completed, and the race started. The connection between peers player is automatic: as soon as one of the player correctly maps the environment and place the first piece of the track, he acquires "master" status. The master builds the track, chooses race type, and governs the flow of the game (he can start another race on the same track, change track/location...). Up to eight players can share the AR experience: two compete, the others are spectators; when the race ends, and a new one is triggered, a spectator can take over the previous player and substitute him. You can organise a tournament, with multiple races on same or different track. Good luck and... good racing!