Here is the full list of all 15 Roguebreaker achievements.
You've smashed 100 bricks!
You've smashed 100 bricks! Nice!
You've smashed 5000 bricks! Great!
You've smashed 5000 bricks! Impressive!
You've smashed 20000 bricks! Wow!!
You've beaten a single level without dying!
You've beaten ten levels without dying!
You've beaten one hundred levels without dying!
You've picked up 100 pickups!
You've picked up 500 pickups!
You've picked up 1000 pickups!
You've picked up 2500 pickups!
You've played a custom level you've made!
You've played a bonus level you've unlocked by levelling up. Earn XP by scoring big points!
You've played a workshop level you've made or subscribed to via the Steam Workshop