Deep blue underwater marine archaeology shadow tuning casual game. Miniature antique sailing ship models sit on submerged display platforms each level. Drag glowing spherical underwater light sources to shift illumination azimuth, refine cast shadows until they perfectly mirror the outline of buried shipwreck templates. Three inaccurate shadow tuning attempts or running out of stage time trigger instant level failure. Advanced stages implement gently revolving boat models, blended dual-source underwater projection, and multiple ship props requiring synchronized shadow calibration. Immersive translucent ocean deep-sea realistic artwork with smooth drag light controls for maritime exploration casual entertainment.