"Doom clone" meaning in English

{
  "etymology_text": "So called from the similarities with Doom (1993), an early popular game in this style.",
  "forms": [
    {
      "form": "Doom clones",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Doom clone (plural Doom clones)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "attestations": [
        {
          "date": "1990s",
          "references": []
        }
      ],
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Video game genres",
          "orig": "en:Video game genres",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "48 52",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "54 46",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "47 53",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A first-person shooter."
      ],
      "id": "en-Doom_clone-en-noun-NKrL~DFE",
      "links": [
        [
          "video game",
          "video game"
        ],
        [
          "first-person shooter",
          "first-person shooter#Noun"
        ]
      ],
      "raw_glosses": [
        "(video games, dated) A first-person shooter."
      ],
      "tags": [
        "dated"
      ],
      "topics": [
        "video-games"
      ]
    },
    {
      "categories": [
        {
          "_dis": "48 52",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "54 46",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "47 53",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "games that uses same art-style as the first Doom like 2.5D worlds or digitalized frames or mimic the gameplay"
      ],
      "id": "en-Doom_clone-en-noun-AxQGFhYO",
      "links": [
        [
          "2.5D",
          "2.5D"
        ],
        [
          "digitalized",
          "digitalized"
        ],
        [
          "gameplay",
          "gameplay"
        ]
      ],
      "raw_glosses": [
        "(slang) games that uses same art-style as the first Doom like 2.5D worlds or digitalized frames or mimic the gameplay"
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "word": "Doom clone"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "etymology_text": "So called from the similarities with Doom (1993), an early popular game in this style.",
  "forms": [
    {
      "form": "Doom clones",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Doom clone (plural Doom clones)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "attestations": [
        {
          "date": "1990s",
          "references": []
        }
      ],
      "categories": [
        "English dated terms",
        "en:Video game genres"
      ],
      "glosses": [
        "A first-person shooter."
      ],
      "links": [
        [
          "video game",
          "video game"
        ],
        [
          "first-person shooter",
          "first-person shooter#Noun"
        ]
      ],
      "raw_glosses": [
        "(video games, dated) A first-person shooter."
      ],
      "tags": [
        "dated"
      ],
      "topics": [
        "video-games"
      ]
    },
    {
      "categories": [
        "English slang"
      ],
      "glosses": [
        "games that uses same art-style as the first Doom like 2.5D worlds or digitalized frames or mimic the gameplay"
      ],
      "links": [
        [
          "2.5D",
          "2.5D"
        ],
        [
          "digitalized",
          "digitalized"
        ],
        [
          "gameplay",
          "gameplay"
        ]
      ],
      "raw_glosses": [
        "(slang) games that uses same art-style as the first Doom like 2.5D worlds or digitalized frames or mimic the gameplay"
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "word": "Doom clone"
}