《數碼digit for Nintendo Switch》（日文原名：数乱digit）是由日本遊戲公司Otomate發行的數字解謎類遊戲，最初登陸PS Vita平台，後來在2025年6月5日於Nintendo Switch平台推出移植版。結合數學邏輯與懸疑劇情，以獨特的敘事方式與解謎機制獲得部分玩家群體的青睞，是少數以數學與心理為題材的視覺小說類型遊戲。

劇情方面，以私立「梵學園」的特殊高中作為背景，女主角是被捲入神秘「數學遊戲」的女主角「零崎紘可」。在學園內，每位學生都被賦予屬於自己的「數字身份」，這個數字不僅關係到他們的能力與地位，甚至關係到生存。學園事實上由「数家」的九大名門所控制，學生們必須參與一場場名為「数乱戰」的比賽，勝利才能累積「數值點數」，輸家將面臨被逐出學園或更糟糕的命運。整個故事圍繞女主角如何在這個以數學為統治邏輯的殘酷學園中尋找真相、結交盟友並一步步揭開學園的黑幕。

劇情融合懸疑、心理戰與青春校園要素，在數學規則與人性之間穿梭。除以數字解題推進劇情外，角色間的對話、內心掙扎與互動也是本作的核心。每個角色都具有鮮明個性與隱藏過去，遊戲節奏由輕鬆校園轉為逐步揭示陰謀的張力推進，搭配風格化的視覺與BGM，營造出懸疑又帶點青春熱血的氛圍。

操作上，採用典型的視覺小說（Visual Novel）操作方式，主要透過閱讀劇情與選擇選項來推進遊戲流程。當進入「Digit Game」階段時，需進行一連串的數字解謎與邏輯推理任務，這些遊戲設計結合簡單的算術、數字排列、邏輯關係等基本數學概念，類似「數獨」與「邏輯方塊」的變化形式。不僅要計算正確，還要根據對手的行為與語言推斷他們的數值策略，有時還要進行「心理博弈」，選擇是否與他人合作或背叛。

Switch版本針對掌機模式做操作優化，包括觸控支援與簡化的介面選單，在閱讀劇情與操作解謎時更直覺流暢。同時，移植版也包含原版全部語音與完整內容，畫質提升至高清畫面，保留原作風格之餘也更適應現代平台的需求。

市場評價方面，屬於小眾但具備鮮明特色的作品。在日本地區，喜歡推理與數字遊戲的玩家給予其高度評價，認為劇情引人入勝、遊戲設計有教育與娛樂並存的價值。但在海外市場，由於語言隔閡與題材相對冷門，其關注度與熱度有限。部分評論指出，雖然數學謎題設計精巧，但重複度稍高、劇情節奏前期略顯緩慢，可能會影響部分玩家耐心。另一方面，遊戲角色塑造與視覺風格仍獲得正面肯定，特別是對喜愛《彈丸論破》或《極限脫出》風格作品的玩家而言，《數碼digit》帶有類似的推理壓力感與角色關係張力。

總體來說，《數碼digit for Nintendo Switch》是融合懸疑劇情、數字解謎與校園心理戰的獨特視覺小說遊戲。它不走大眾娛樂路線，卻以創新的主題與緊湊的劇情吸引喜愛思考與挑戰的玩家。對於擁有耐心、喜歡邏輯思維與角色成長劇情的玩家而言，這款作品是一段值得深入體驗的智性冒險。

“Digit for Nintendo Switch” (Japanese title: 数乱digit) is a numerical puzzle visual novel developed by Japanese company Otomate. Originally released on the PS Vita platform, the game was later ported to the Nintendo Switch on June 5, 2025. Blending mathematical logic with suspenseful storytelling, the game has garnered a niche but dedicated following, standing out as one of the rare titles that revolve around themes of mathematics and psychology within the visual novel genre.

The story is set in a unique private high school known as Bann Academy, where the protagonist, Koka Zerozaki, becomes entangled in a mysterious “Number Game.” Within this academy, every student is assigned a “numerical identity” that determines their abilities, social status, and even their chances of survival. The school is in fact governed by the Nine Noble “Number Families,” and students are forced to participate in intense matches known as the “Digit Wars.” Only by winning these matches can they accumulate “numerical points”; those who lose face expulsion—or worse. The narrative centers around Koka’s journey to uncover the truth behind the academy’s ruthless system, forge alliances, and slowly expose the dark secrets hidden beneath its polished facade.

The storyline mixes mystery, psychological warfare, and high school drama, weaving back and forth between mathematical rules and human emotions. While numerical puzzles drive the progression of the plot, the game also emphasizes rich dialogue, internal monologues, and character interactions. Every character has a distinctive personality and a hidden backstory, and the game gradually shifts from a lighthearted campus setting to a tense, conspiracy-laden atmosphere. Stylish visuals and a suspenseful soundtrack create a mood that is both thrilling and youthfully energetic.

From a gameplay perspective, “Digit” follows the classic Visual Novel format, where players read through the story and make choices to determine its direction. When the narrative enters the “Digit Game” segments, players must solve various number puzzles and logic-based challenges. These tasks involve basic arithmetic, number sequencing, and logical relations, resembling variations of Sudoku or logic grids. Players must not only calculate correctly but also interpret opponents’ actions and dialogue to deduce their strategies—sometimes engaging in psychological bluffing, deciding whether to cooperate or betray others.

The Switch version has been optimized for handheld play, with touch support and a streamlined interface that makes both reading and puzzle-solving more intuitive. The port includes all original voice acting and content, with enhanced HD visuals that retain the game’s stylized aesthetic while aligning with modern platform standards.

In terms of market reception, “Digit” remains a niche but uniquely compelling title. In Japan, players who enjoy detective work and math-based games have given it high praise, highlighting its engrossing plot and the balance of educational and entertainment value. However, in overseas markets, its reach has been limited due to language barriers and the specialized subject matter. Some reviewers note that while the math puzzles are cleverly designed, their repetition and the slow early pacing of the story may challenge players’ patience. On the other hand, the game’s character development and strong visual identity have been widely appreciated, especially among fans of games like Danganronpa and Zero Escape, who find the psychological tension and relationship dynamics similarly engaging.

Overall, “Digit for Nintendo Switch” is a thought-provoking visual novel that combines mystery, numerical logic, and schoolyard mind games. While it doesn’t follow a mass-market entertainment formula, its innovative theme and tightly written narrative make it a rewarding experience for players who enjoy deep thinking and complex character arcs. For those with patience and a love of logic puzzles and storytelling, “Digit” offers an intellectually rich adventure worth diving into.