Proto-Synth Grid Engine: Deterministic Worlds Built on 2D, Experienced as 3D

Proto-Synth Grid Engine combines the auditability and deterministic replay of lightweight 2D simulation with the visual immersion of 3D rendering, enabling programmable worlds that serve as foundations for AI runtimes, spatial interfaces, and local-first systems. By treating geometry as computation rather than decoration, it reimagines simulation engine design for next-generation interactive environments.