Overgrowth, sequel to Lugaru (2005), is a 3d stealth/combat action-adventure game starring ninja rabbits and other animals. The game's central feature is its fluid, dynamically animated, brutally realistic combat featuring various levels of AI, a variety of weapons and armor, and other special features made possible by Wolfire Games' custom-developed Phoenix Engine.
The game takes place in a world called Lugaru, where beasts and animals control the societies rather than humans.
The game was notable in its early development (pre-2010) for being one of the first games to have a fully transparent dev blog and weekly alpha releases available for backers. Over the nine-year development, all 227 of Wolfire's alpha builds were available to download along with weekly videos of new features.