Explore outer space in Run 3. Run 3 is an incredibly addicting, endless runner-type action/platforming game in which you play as a little grey alien. The little alien is trespassing in an architecturally challenged area that is floating in space. After trespassing in the prohibited zone which is full of increasing amounts of dangerous holes, you run. If you fall into one of the holes, you will find yourself lost in space so make sure to watch your step!