Gun Builder is an exciting weapon game that allows the player to completely build their own gun. It does an excellent job of slowly introducing the player to each of the parts that they can use by prompting them to build a specific weapon in each level. As the player completes each level, they gain access to new parts. This logical progression of unlocks not only makes the game satisfying as you proceed through the levels, but also allows the player to become comfortable with each part as the game progresses. As the game progresses, the amount of options available to you will open up, but in such a way that you can manipulate them without getting overwhelmed.