Without specific details on the plot, one can infer from the title that "Fallen Doll" might involve a mysterious, possibly animate doll, which becomes a central point of intrigue or horror. Lovecraftian tales often feature seemingly innocuous objects becoming catalysts for cosmic terror. The game likely challenges players to unravel a mystery that could involve ancient deities, forbidden knowledge, and possibly the unraveling of reality.

If you're a fan of Lovecraftian horror, puzzle-adventure games, or visual novels with a dark twist, "Operation Lovecraft: Fallen Doll" could be a compelling addition to your gaming list.

"Operation Lovecraft: Fallen Doll" appears to be a part of a series of visual novels or interactive story games that blend elements of mystery, horror, and adventure, likely inspired by the works of H.P. Lovecraft. Given the title and the thematic suggestion, this game probably aims to immerse players in a world of cosmic horror, puzzles, and perhaps sanity-blasting terror.

The game seems tailored for fans of psychological horror, mystery, and adventure games. It's likely to appeal to players who enjoy unraveling complex stories and are fans of Lovecraftian themes.

Based on inferred quality and assuming target audience appeal, a speculative rating could be around 7.5/10.

Without direct access to gameplay, graphics, or specific plot details, it's challenging to provide a comprehensive review. However, based on the title and inferred themes, "Operation Lovecraft: Fallen Doll" seems poised to offer an engaging, if chilling, experience for those who enjoy delving into the mysteries of the cosmos through a Lovecraftian lens.

The character and environmental design could range from gothic Victorian-era inspired aesthetics to more modern interpretations of Lovecraftian horror. The "Fallen Doll" aspect could introduce a visually striking and unsettling element to the game.