Hello! Well, since it's unfinished, enemies will not fight back. You get a score only by killing demons. To attack them, you need to click on their icon under the window with an eye. Building houses would need 100 wood, but, once again, since it's not finished, you can build them without wood. Before you leave the game, please find the option "Save&SeeScores" so your score will be saved. Thanks for trying it out!