Here is the full list of all 10 Cubot achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
The 8 levels of "The Beginning" episode were completed
The 8 levels of "Red Cube" episode were completed
The 8 levels of "Button & Block" episode were completed
The 8 levels of "Green Cube" episode were completed
The 8 levels of "Color Swap" episode were completed
The 8 levels of "Purple Cube" episode were completed
The 8 levels of "Teleporter" episode were completed
The 8 levels of "The First End" episode were completed
The 8 levels of "Orange Cube" episode were completed
The 8 levels of "Autoblocker" episode were completed