| Be careful!
This level or achievement has been known to feature a bug. Please attempt it with caution.
A Journey of 1000 Light-Years is an infinite mode achievement in Run 3. Since this achievement requires you to run a certain distance, there is no specified level for when you can beat this achievement.
Since you need to run for a decent distance for the achievement, the preferred character is the one you mastered and favorite 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".
- The level shown in the icon of this achievement is Infinite Mode level 23.
- Despite its name, you only run 800m, not 1000m.
- 1000 light years is actually 9.4605284 × 1015 km, in scientific notation.
On Cool Math Games, this achievement is currently completely broken, along with Galactic Vandalism. If you play there, do not attempt to earn it because you cannot get it. However, the achievement will still show up on the list of possible achievements.