A wizard must get through a scary castle. His only defense will be defensive walls, which he is able to summon. Use cursor keys to move around, or just common W-A-S-D. Stay clear of enemies, like skeletons, reanimated armour or ghosts. Use the mouse to build defenses. Pay attention to a time limit, which marks the blocks' duration. If you aren't satisfied, just click it to let it disintegrate. In every level, the goal is an exit door. Along the way, collect stars and you can even find a treasure. It's not obligatory to finish the level, just press the S key, when near to the exit door.