Lost in Blue is a Survival and Single-player video game by Konami for Nintendo DS. The game takes place in the sandbox environment, and the plot of the game revolves around two young teenagers named Skye and Keith, who struggle for their survival on the deserted island where the game is set. In the game, the player has to learn how to use the natural resources of the island to create the makeshift home away from his home. The gameplay of Lost in Blue makes extensive use of the microphone and touchscreen features of the system. The player has to alternate pressing R and L buttons to build enough friction on the wood to make fire and then blow into the microphone of Ds to ignite the fire. The primary action of the game takes place on the screen, while the top section of the screen is used to show the health of characters, which is divided by stamina, thirst, hunter and hit points. The hit points of the player will begin to drop if the energy or thirst category reaches to zero.