A Journey of 1000 Light-Years is an in-game achievement in Run 3. It can only be earned in the Infinite Mode. Since you need to run for a long distance for the achievement, the preferred character is the one you mastered and favourite character.
For beginners, 800 meters sound like a long distance to run, and that it is very hard. But unlike Unlimited Endurance (which is the much harder one), this achievement allows you to respawn as many times as you like. However, every time you respawn, you are costing yourselves Power cells, so you will only be wise the challenge for the achievement if you are well-prepared and feel confident for the achievement.
- The name is a reference to the quote "a journey of a thousand miles begins with a single step," except using "light-years" instead of "miles" and "800 meters" instead of "a single step."
- The level shown in the icon of this achievement is infinite mode level 23.