How to get Unbreakeable achievment?

[Apollo1976]

I got the unbreakable achievement, but it took a lot of work and dedication. I kept my trophies around 200. I also kept my storages full. I won over 100 defenses a day, and it took about a month. Good luck!

this was possible pre-update, but not any more. to drop down to 200 now would take a full day as you now get the infamous clouds both over 4k and sub 400.

[KletusfromEvilQueso]

Just put your collectors outside your base and let them fill up. You will get easy defenses all day long.

[blackcollector]

Tons of people dropping trophies in silver leagues. Just go to around 1000 trophies and let your mines and collectors fill up.

Most won't even take them.

Just don't keep over 4M of each in your base because a shark farming there might attack you for real.

I usually climb to C1 or M3 before I get a shield. But the best spot is around 1000 trophies if you can stay there.