Friendly machines are depicted with a white dot. The earliest the achievement can be unlocked is during your first playthrough at the beginning of Chapter 4. When you enter the amusement park during the MIA main story mission, there are more than 10 machines depicted by a white dot destroying them unlocks the achievement. There is the possibility this achievement will be glitched. So, make a save at the Amusement Park access point before destroying your 10th friendly machine if this is where you decide to earn the achievement.Recommended point to get the achievement--Machine Village
: If you are working towards all 26 endings, kill two birds with one stone and get this achievement while you are working on the N ending. This requires you to kill all machines in the machine village. There are far more than 10. When you first reach the machine village at the beginning of chapter 5 doing the Machine Recon main story mission, make a save at the access point just to the right of Pascal before talking to him. Then, kill Pascal and all other machines in the village to earn the N ending for [N]o Man's Village. The achievement should unlock when you kill your tenth friendly machine. Once you get the N ending and are back at the title screen, reload the save you made at the Machine Village Access Point and continue with your game.
Regardless of where you destroy the tenth friendly machine, if the achievement does not unlock, you have probably experienced a glitch. In this event, clear the cache. To do so, turn off the console by holding the
button on the console for at least ten seconds and then unplug the console for at least 20 seconds. Load the save you made before destroying the tenth friendly machine. Clearing the cache will most likely remedy the problem and you should earn the achievement when you destroy your 10th friendly machine.Note
: This achievement is available for sale from the special achievement shop that becomes available after your third playthrough. It costs 50,000 gold.