Dinos in Space has little to do with either dinosaurs or space. Rather, it is a well-conceived little puzzle game -- conceptually quite simple, but with the ability to pose puzzles that take real cognition to solve.
One or more dino-emitters are located in a square grid; when you press the space bar, they spit out dinos in a particular direction. Each dinosaur must be guided to a same-colored space station, also located in the grid. Your main tools for doing so are arrows, of which you have a limited selection to place in the grid; grey ones affect the path of all dinos, while colored ones affect only dinos of the same color. In some levels, you also have teleporters, which move dinos from one square to another. The number and mix of tools is strictly limited in each level, so that there is typically only one, or a handful, of solutions.