Mystic Mahjong sets mahjong solitaire in a mystical world called Divinex, with symbol-covered tiles arranged in 3D layouts you can rotate — which matters, because rotating the board is how you reach tiles blocked from your current angle.
That rotation is a real mechanic rather than decoration. A tile that looks buried from one side is often free from another.
Because tiles are arranged in 3D. A tile blocked from one viewing angle is often free from another, so rotating is part of solving rather than just a camera option.
Avatars and backgrounds, earned by completing levels.
Yes — tap tiles and drag to rotate. Nothing to install.