• LUDAS is a fictional toy brand established in Brooklyn, New York based off the model of DUPLO blocks.. The focus of LUDAS is similar to other building block toys, to encourage kids to build and imagine whatever they want. But, LUDAS is different when it comes to what else they offer. Packages come in different sizes, either filled with one color or assorted. Each box comes with a small guide of different animals and creatures that children can build with their blocks. To help kids learn, there is also information on them.