Here is the full list of all 27 Ballpoint Universe - there are Infinite achievements.
Completed "The Lost Fortress" flawlessly!
The elder revealed the truth of this age for you.
Completed "Defenders of the Elder" flawlessly!
Completed "Stone Dragon" flawlessly!
Completed "Clearing a Path" flawlessly!
Completed "Stolen Artifact" flawlessly!
Completed "The Battleship" flawlessly!
Things might get weird from here.
Passed wave 16 in Infinite Mode.
Passed wave 24 in Infinite Mode!
Passed wave 36 in Infinite Mode.
Passed wave 48 in Infinite Mode.
Passed wave 60 in Infinite Mode! Wow!
Completed "Face Off" flawlessly!
Completed "Counter Attack" flawlessly!
The end of a page.
Completed "Brethren" flawlessly!
The boss of the logicians, your enemy?
Completed "The Owls" flawlessly!
Completed "The Demented Doodles" flawlessly!
Completed "Treetop Battle" flawlessly!
The hotspot for creativity!
Completed "Target Practice" flawlessly!
Completed "Training on the rocks" flawlessly!
You are a good enough idea.
Welcome to the Spring!
Passed Wave 8 in infinite mode.