On 30 October 2013, Cubicle 7 announced the development of a new roleplaying game, called "Lone Wolf Adventure Game", as "a development of the previous Multiplayer Game". A crowdfunding was launched on Kickstarter and collected £68,000. On 26 August 2014, C7 publishes the character sheet with a summary of rules. The core rules were released in 2015 as a boxed set consisting of three books: "Book of Kai Training", allowing players to create their own characters for the game, "Book of Kai Wisdom", containing the rules to play the game, and the "Book of Kai Legends" which consists of two adventures and advice on creating future adventures. In addition to the books pre-generated characters and blank character sheets were included. The boxed set was designed to be played straight from the box, with the first adventure in the "Book of Kai Legends" allowing new players to start with the pre-generated characters and play immediately.