Cup Stack 3D is an exciting game available on the iPhone platform. Developed by Ceyhun Tasci, this free game offers a unique gameplay experience that will keep you engaged for hours. The objective of the game is simple: sort the cups by numbers. However, don't be fooled by its simplicity, as the challenge lies in the 3D perspective.

In Cup Stack 3D, you'll be presented with a stack of cups, each labeled with a number. Your task is to rearrange the cups in ascending order by dragging and dropping them. As you progress through the levels, the stacks become more complex, requiring careful planning and strategic thinking.

With its intuitive controls and visually appealing graphics, Cup Stack 3D is easy to pick up and play. The game also features soothing background music that adds to the overall experience. Challenge yourself and see how quickly you can sort the cups in this addictive game.