DGFC, Dark Giger Flooded Crypt, dgfc_sarcophagusfv, biomechanical sarcophagus inside a flooded alien crypt, opened black metallic coffin containing a skeletal biomechanical corpse with elongated alien skull, ribbed exoskeletal body structure and intertwined organic cable tendrils wrapped across the torso and limbs, intricate xenomorphic engravings and skull reliefs carved into the sarcophagus walls and lid, wet reflective black water surrounding the coffin platform with circular ripple formations, glowing cyan-blue spectral flame burning from an organic biomechanical brazier in the left background, cold blue illumination reflecting across dark metallic surfaces, dense atmospheric moisture, ultra-detailed biomechanical textures, oppressive sacred dark sci-fi atmosphere, dramatic close perspective, ancient alien funerary chamber