This study centres on the construction of a procedural terrain generation tool that will enable game designers to create realistic, interesting environments that they can roam endlessly through. Recent technological advances in graphics hardware have allowed for the development of new algorithms that can synthesize terrain more easily and realistically. Currently, most game developers will choose one of two options when creating their game environment; use an artist to create all of the content for them, which can be both time consuming and expensive. Or they may choose to procedurally generate the world, which is cheaper, but can result in less realistic representation. This project will utilise new methods and techniques to bridge the gap between these two options so realistic terrain can be generated quickly and cheaply, and at the same time, grant artists a degree of artistic licence to enhance game environments.