Half-Life 2 is an excellent FPS released in 2004. It does not have multiplayer, and is rated M (for Mature).
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{"name": "Half-Life 2", "release_year": "2004", "esrb": "M (for Mature)", "rating": "excellent", "genres": "shooter", "player_perspective": "first person", "has_multiplayer": "no", "intention": "inform"}
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