Here is the full list of all 12 Lowglow achievements.
Complete 30 levels with less lines than the given amount. Magnificent!
Open all of the vaults in Umbralight
Complete the fifth chapter
Complete the fourth chapter
Complete 15 levels with less lines than the given amount.
Complete the third chapter
Destroy 50 lines.
Complete the second chapter.
Open your first vault.
Complete the first chapter.
Complete a level without missing a single drop.
Complete 5 levels with less lines than the given amount