During the early stages of the HSRL's development, Stile-RD created the Simulated Racing Domain to save on travel costs. It was made to replace their old testing facility at Research On Demand, in Fantasia. 

The space itself isn't real, where in reality, pilots are flying around a large flatland known formally as the X7D Deadzone. However, using proprietary illusion technology, the SRD shows itself to be a crimson red test track with 'growths' alongside it, an artefact from the limitations of its presentation.

Information about this track is sparse, as most of its traits are confidential and locked behind the minds of Stile-RD. However, Stile-RD allows the HSRL to utilize the track for the HS300 league, with strict rules in place.