Minecraft Bedrock players earn the "On A Rail" achievement by traveling a distance of at least 500 meters by minecart in a single direction. The worlds of Minecraft are incredibly vast and expansive, ...

There are a few different types of rails in Minecraft. The standard rail will let minecarts roll over it at whatever speed they're going. Powered rails will give the minecart a significant speed boost ...

Now, this achievement is easier to get than it seems. Your best bet is playing the game on 'peaceful' difficulty. That way, you can work through the night if need be.