These are available to people who have pre-ordered the game. Since 25 November 2008, Wolfire Games has released new Alpha tests every 2–5 months, containing most of the features so far implemented in the game.
The game is shipped with a fully featured level editor and the developers wanted to make sure that the tools required to mod the game would not be too costly or preferably free for instance Blender. The engine includes a number of useful features like an animation handler in which animations can be smoothly blended between, a scripting system using AngelScript that is tied into the game engine allowing for a lot of control over various engine features, and an ambient sound system. Overgrowth utilizes a game engine called the 'Phoenix Engine'. Overgrowth is built on the gameplay of its predecessor, Lugaru, and as such uses a hand-to-hand combat system that bases attacks and counters on timing and context using context-sensitive action buttons rather than different key combinations. Major plot points specific to Overgrowth have not yet been revealed. After avenging the murder of his family, killing the Alpha wolf, and killing the corrupt king Hickory, Turner refused to take Hickory's place on the throne, instead choosing to leave the monarchy headless and wander the island in search of some new purpose. Overgrowth's story takes place several years after the events of Lugaru and follows the same protagonist: Turner. Lugaru is a chaotic world, inhabited by anthropomorphic rabbits, wolves, rats, cats and dogs living at a pre-industrial level of technology. The story takes place on the island of Lugaru, an unknown number of years after the fall of the human race, indicated by the ruins of tall man-made structures overrun by vegetation.
The game plays as a 3D third-person action game, set in a pre-industrial world of anthropomorphic fighter rabbits, wolves, dogs, cats and rats. As before, the player character is Turner, an anthropomorphic rabbit with combat skills. Overgrowth is the sequel to Lugaru, a 3D action game made by the same company. It was announced on Septemand released on October 16, 2017, after 9 years of developing and being available as early access. Overgrowth is an action video game released by Wolfire Games available for Windows, macOS and Linux.