Use the keyboard A, W, D, S or arrow keys Left, Up, Right, Down, and mouse button - if the game description "Defend Your Castle HD" is not stated otherwise.
Defend Your Castle HD
Description: Defend Your Castle is a strategic defense game where you have to protect your castle from the enemies. Carefully place your pieces down as you like, and destroy anything that tries to get in your path. Make sure to keep your knight surrounded and safe! Available to download for free across mobile platforms.