ProjectSpeed is the home of an independently developed race simulator built around a custom game engine. The project focuses on realistic vehicle behavior, combining detailed physics with an evolving game world and visual technology. Its simulated cars can use front-wheel, rear-wheel, or all-wheel drive, with features including engine torque, automatic and manual gearboxes, and open, limited-slip, or viscous differentials. Vehicle dynamics also account for steering, anti-roll bars, braking, suspension, and a comprehensive tyre model incorporating toe, camber, and caster. Driver-assistance systems include traction control, anti-lock braking, electronic stability, and brake mapping, alongside aerodynamic simulation.

ProjectSpeed’s development extends beyond vehicle physics. The engine has received features such as world streaming, procedural lake generation, mist and ocean rendering, global illumination, reflections, volumetric effects, and HDR10 support. The website shares project news, videos, and developer blog updates, offering a window into ongoing development. ProjectSpeed notes that a different game with the same name was released on Steam, distinguishing this simulator from that title.