Sienna is a challenging platform game developed by Tangram Games, available for Windows. With a single button control, players navigate through nine intricate levels, aiming to reach the end while dodging numerous obstacles along the way. The continuous movement of the character adds a sense of urgency, requiring precise timing for successful jumps.

Unlike traditional endless runners, Sienna offers finite levels that provide a satisfying sense of accomplishment upon completion. However, the complexity of each level demands precision and patience, as a single mistake sends you back to the last checkpoint. Despite the game's difficulty, the feeling of triumph upon conquering a level is immensely rewarding.