由 Towa Chiki 於 1988 年 5 月 13 日在任天堂 Famicom（紅白機）上推出的《名偵探福爾摩斯：霧之倫敦殺人事件》（Mei Tantei Holmes: Kiri no London Satsujin Jiken），是一款改編自 亞瑟·柯南·道爾 筆下經典偵探形象的指令式推理冒險遊戲。在 1980 年代末期，隨著推理作品熱潮升溫，憑藉極高難度與濃厚的倫敦氛圍，成為許多玩家心中既經典又令人頭痛的代表作。

在整體呈現上，試圖於 8 位元硬體上重現維多利亞時代偵探小說的陰鬱氣質。畫面採用典型文字冒險的上下分割介面，上方顯示場景與人物，下方為操作指令選單。透過大量深色調與網點陰影的運用，成功營造出霧氣瀰漫的倫敦街頭質感。音樂則以低沉而帶有懸疑感的旋律為主，當調查進入關鍵時刻時，音效的轉換會明顯提升緊張氛圍，使玩家長時間處於壓力之中。整體類型屬於正統的文字推理遊戲，強調觀察細節、對話選擇與邏輯推理的嚴密性。

故事背景設定在 19 世紀末的倫敦，夏洛克·福爾摩斯，與搭檔 約翰·華生 一同調查一起震驚社會的殺人事件。隨著案件逐步深入，會發現這不僅僅是單一兇案，而是牽涉到更龐大的陰謀與組織。需要穿梭於倫敦的街道、酒館與公園之間，蒐集證據、訪問證人，並最終在推理環節中指出真正的兇手。

在操作機制上，以其嚴苛的設計著稱。透過「看」、「拿」、「移動」、「說話」、「調查」與「推測」等指令推進劇情，每一步行動都可能影響後續發展。遊戲中的「懷錶系統」讓時間成為關鍵資源，某些角色或事件只會在特定時間出現，若錯過時機便可能導致線索中斷。此外，需要自行記錄嫌疑人的供詞與取得的證據，因為在最終推理時，只要選錯關鍵證據或邏輯推論，案件就會直接失敗。華生除作為旁白角色，也會在特定情況下提供醫學觀點或提示，增強整體代入感。

在市場評價方面，被普遍視為紅白機上最具挑戰性的推理遊戲之一。評論家高度肯定其對倫敦氛圍的還原，以及貼近原作精神的人物塑造，讓玩家彷彿親身置身於小說世界之中。然而，其極高的難度也成為雙面刃，由於提示稀少且時間機制嚴苛，許多玩家在當年不得不依賴攻略本才能順利通關。即便如此，它仍在歷史上佔有一席之地，尤其是在將「時間要素」融入推理遊戲方面具有開創性意義。

遊戲最令人印象深刻的體驗，往往來自於那種孤獨而專注的推理過程。當玩家在貝克街的寓所中反覆思索案情，試圖拼湊出兇手如何在濃霧中消失的真相時，整個遊戲彷彿化為一場與自己思維的對決。也正是這種既壓迫又迷人的推理氛圍，使它成為許多老玩家難以忘懷的經典之作。

Released by Towa Chiki on May 13, 1988 for the Nintendo Famicom (NES), Detective Sherlock Holmes: Murder in Foggy London (Mei Tantei Holmes: Kiri no London Satsujin Jiken) is a command-based detective adventure game inspired by the legendary sleuth created by Arthur Conan Doyle.

In the late 1980s, following the boom of mystery games sparked by titles like Portopia Serial Murder Case, this game stood out for its extremely high difficulty and its uniquely immersive “foggy London” atmosphere—earning a reputation as both a classic and a nightmare among fans of the genre.

The game’s presentation attempts to recreate the dark, mysterious tone of Victorian detective fiction within the limits of 8-bit hardware. Visually, it uses a standard command-based adventure layout, with scenes and character portraits displayed in the upper portion of the screen and a menu of actions below. Heavy use of dark tones and dithering effects successfully conveys the thick, misty ambiance of London. The music leans toward a suspenseful, slightly oppressive classical style, with sound cues intensifying tension during critical investigative moments. At its core, it is a traditional text-driven mystery game focused on observation, dialogue, and logical deduction.

The story takes place in late 19th-century London, centered around 221B Baker Street. A shocking murder has occurred, leaving the police at a loss. Sherlock Holmes and his trusted companion Dr. John Watson are called in to investigate. As the case unfolds, it becomes clear that the crime is far from simple, involving a larger conspiracy lurking beneath the surface. Players must explore various locations across London—streets, pubs, and parks—gather clues, question suspects, and ultimately identify the true culprit.

Gameplay is defined by its strict logic and high penalty for mistakes. Players use a command menu featuring actions such as “Look,” “Take,” “Move,” “Talk,” “Investigate,” and “Deduce.” One of the game’s most distinctive mechanics is the watch system, where time constantly progresses. Certain characters and events only appear at specific times, requiring careful scheduling and frequent checking of the in-game watch. The notebook system is equally crucial, as players must remember testimonies and evidence; choosing incorrectly during the final deduction phase leads directly to failure and a game over. Watson also plays an active role, occasionally offering medical insights or hints to aid the investigation.

Critically, the game was known for its punishing difficulty and strong atmospheric design. Many reviewers noted that the lack of guidance made it easy to miss key clues, potentially halting progress entirely—forcing players at the time to rely on guidebooks. However, for fans of Sherlock Holmes, the detailed recreation of London and faithful portrayal of characters provided a deeply immersive experience, as if stepping directly into the original stories.

Historically, it stands as one of the early Famicom titles to incorporate a real-time element into detective gameplay. Although Towa Chiki was often associated with producing eccentric or low-quality games, this Sherlock Holmes title is widely regarded as one of their most solid and memorable works.

One of the most iconic memories of the game is pacing back and forth inside the Baker Street apartment, trying to piece together how the culprit vanished into the fog—while endlessly wandering the map in search of that one crucial witness.