Dark Energy Digital was a privately owned video game developer and publisher based in the United Kingdom. It was formed from members of Blade Interactive, which continues to operate as a separate company. On 28 September 2007, following the public announcement of Hydrophobia, it was announced that a deal had been made between Blade Interactive and Total Asset Limited and was to become a publisher in its own right and publish its own titles. On 19 March 2012, it was announced the company had closed due to low sales of Hydrophobia.