The creativity of the player will determine whether or not they advance. A mobile guard tower or airborne attack might be required if the layout of the level is a minefield, or a level might be an enemy stronghold that requires a head-on attack. To start each level, the player is shown what they must overcome, then they are given access to the machine editor so they can build the necessary strike force. Players are given the freedom to win in any way they wish, as long as they defeat the enemy. Each level is different, and the player must use the machine editor to create a compatible device that will defeat the layout of the individual enemy level. Players are given a simple objective, which is to advance through the game's 15 levels by destroying the enemies as they are presented. While it might surprise some that a game such as this could be as fun and entertaining as it is, there is no denying the addictive nature of this war game. In Besiege, players simulate war by building and testing machines that are meant to defeat an enemy in a creative way, and the game includes so many elements that the real limit is the player's imagination.