Castles are made out of cement and/or brick
wood timber stone etc
you could also use straw and cocktail sticks for the houses and the bridge.
they used a kind of wood, and mud.
Bricks
Cake.
they used long wooden planks to build their houses
You could build it or use Tale of Kingdoms or Castle Defenders mod
Go to the seashore and build a sand castle. Then try to build a water castle and/or an air castle. That should tell you everything you need to know to answer this question.
what matrials didthefirst americans use to build their home
hammer,nails,and saw
There are many types of materials engineers use to build walls. Three possible construction materials are wood, brick, and concrete.
Bricks weren't used to build castles, but stone and wood.