The Base Render Unit Engine (Aka BRU Engine) was developed by Quazar Studio originally for
Enosta: Discovery Beyond (2000-2005). When Enosta was cancelled its resources (and the engine)
were used to create Tarr Chronicles (2005-2007). Dark Horizon (2007-2008) and Cold Stars (2008-2009)
In 2009 Stuart "Stucuk" Carey took over maintenence of both Tarr Chronicles and Dark Horizon. Their
Source Code was brought closer together, but both games still have slightly different engines.
In Febuary 2012 the BRU Engine SDK was released and it supports both Tarr Chronicles and Dark Horizon.