Dark Energy Digital[1] was a privately owned video game developer and publisher based in the United Kingdom.

[4] Three years were spent developing HydroEngine, their dynamic fluid game engine used in Hydrophobia.

On March 19, 2012, the company suffered due to not having enough money, went broke and was ultimately put into administrative control.

Developed over three years, it has a unique capability which allows modelling of flowing water and other liquids for the first time.

According to the developers it is "an underlying architecture, which can interface with bespoke editors tailored to individual game projects".