During development, Square Enix did not pay Grin over several months, and disapproved of the game's Nordic art style. Grin worked to bring the game's art style closer to the "Final Fantasy" series, but after six months of development was told that no funding would ever come from Square Enix, and the developer filed for bankruptcy several days later. Word of the project leaked out through art portfolios of those who worked on the project and even a tech demo surfaced. In 2011, "Fortress" was thought to have been in development by an undisclosed studio, but this was also suspended and the game will not be released in any form.