We develop a formulation of the Informational Projection Theory (IPT), in which physicalreality is described as the real projection of a complex informational field I = IR + i II . Onan informational manifold endowed with an informational measure, a projection map, and aclosed curvature relation, the dynamics are governed by a minimal local Lagrangian withthree independent informational parameters (α, β, η). We show that, once locality, Lorentzinvariance, gauge invariance and a simple exchange structure between open and closedinformation are imposed, the quadratic part of the action for (IR, G = dII ) is essentiallyfixed to this three–parameter form. In the real projection, G reproduces the structure of anelectromagnetic–type field strength, the metric variation yields an Einstein–like coupling togeometry, and closed loops in the (IR, II ) phase space provide a natural arena for an actionquantization condition. In homogeneous cosmologies, a late–time choice of (α, β, η), togetherwith a small number of derived phenomenological scales, can organize and illustrativelyaccommodate the observed ranges of the Hubble constant H0, the effective cosmologicalconstant Λeff , the electroweak mixing angle, the strong coupling at the Z pole, and de Sitterhorizon quantities within current uncertainties, without requiring extreme fine tuning. Theclosed informational curvature and the projection efficiency offer simple interpretations fordark matter and dark energy, and suggest possible links to inflation, CMB anisotropies, black–hole information, and CP asymmetry. These connections are exploratory; a more detailedcomparison with data and a microscopic derivation of the phenomenological mappings areleft for future work.