Rule 34 Dev - 3d 3d_(artwork) alyx_vance armor armored armored_male black_hair breasts captured captured_heroine clothed clothed_male clothed_male_nude_female clothing collar combine_(half-life_series) combine_soldier_(half-life_series) completely_nude completely_nude_female female floppyhead game_over gas_mask half-life half-life_(series) half-life_2 hands_tied male mask masked masked_male nipples nude nude_female sad sad_face slave source_filmmaker submissive submissive_female|6646347272