In Dinosaur Game, the player operates Lonely T-Rex, a tyrannosaur that proceeds continually from left to right across a desert with only two colors, black and white. Along the journey, the user will be required to leap or kneel over obstacles like cacti and pterosaurs. If the player uses space (on the keyboard) or contacts the dinosaur (on mobile), the dinosaur will "jump" instantaneously, while pressing the key will cause it to "crouch down." The game's pace will progressively increase over time. When the character of Lonely T-Rex collides with any obstacle, the game will terminate abruptly.

Some bus simulator games create the illusion of day and night by altering the time as you move from one location to another. However, this game employs a day-night cycle that causes the time to tick even if you remain still.