The player touches the screen to move Adam Jensen, a protagonist from the stealth combat, cyber-dystopian Deus Ex series, between nodes on a hexagonal grid towards an exit. If moved to a specific node, the character will stealthily take down guards, hack computers, and activate his human augmentations, such as invisibility. Enemies who spot the player's character will move towards and, if they reach his node, eliminate him.
Source: Wikipedia, "[en.wikipedia.org/wiki/Deus_Ex_Go Deus Ex Go]", available under the CC-BY-SA License.