The Builder Halloween Castle a Halloween is coming, all Ghosts and Monsters wanna throw a dance party, but they don't have a place to do that, so help the witches to build the world's tallest Horror Castle in one night. For this party they don't have a place to do it, so help the witches build the tallest horror castle in the world in one night. Just tap to drop the building block, stack the building as high as you can. Help them to place the tower floors, one by one, until they build a gigantic tower. It's an endless challenge, so it only ends when you make a mistake! Play this fun game only on y8.com