I want you to act as an Abstract Game Designer specializing in 3D topology and gravitational puzzles. Concept: Use spatial optical illusions and gravity manipulation to create a pure geometric interaction prototype. Core Challenges: Construct a rotatable 3D topological maze (e.g., based on a Mobius strip or a 4D Tesseract projection). Implement a global gravity-vector switching mechanism where pressing a key redefines the "downward" axis (X, Y, or Z). Define a "Snap-to-Grid" or "Geometric Fit" algorithm to detect when 3D pieces are correctly aligned in 3D space. Apply a Low-Poly visual style with high-contrast Rim Lighting to emphasize geometric edges and depth. Ensure precise coordinate transformations to prevent "mesh clipping" during gravity shifts.