《勇者鬥惡龍 123 合輯》（日文原名：ドラゴンクエスト 1～3，英文名：Dragon Quest 1+2+3 Collection）是集結經典RPG元祖三部曲的合集，由Square Enix發行，專為Nintendo Switch平台推出。首次於2019年在日本地區發售，將1980年代開創RPG時代的傳奇作品，以現代化方式重現於新世代主機上，讓老玩家重溫經典，也讓新世代能夠體驗系列最初的冒險根源。

收錄系列最初的三部作品，分別為《勇者鬥惡龍 I》、《勇者鬥惡龍 II：惡靈之神》和《勇者鬥惡龍 III：傳說的起點》。這三部作品共同構成所謂的「洛特三部曲」（Roto Trilogy），講述英雄「洛特」（Loto，又譯羅德）的傳說與其後代所面臨的種種冒險與挑戰。

在《勇者鬥惡龍 I》中，主角是洛特的後代，為拯救被魔王綁架的公主，踏上討伐邪惡勢力的旅程。故事簡單但具有史詩格局，為日後的RPG敘事立下基礎。

《勇者鬥惡龍 II》則發生在第一代故事的百年後，主角是三位王族後裔的其中一人，與其他成員組成隊伍，面對來自邪神哈根的威脅，展開更龐大、更複雜的冒險。

而《勇者鬥惡龍 III》作為整體時間線的開端，則講述傳奇英雄洛特本人的成長歷程。不僅補全整個三部曲的世界觀，更以其自由度與角色自訂系統，在當年造成轟動。

Switch版本是基於過去在智慧型手機和PS4等平台發行的重製版進行移植。畫面採用2D點陣圖（pixel art）與高清介面融合的設計風格，保留原始風貌，同時優化操作流暢度與可讀性，讓新舊玩家都能輕鬆上手。

操作方面，Switch平台提供手持模式、TV模式與桌上模式的靈活切換，搭配 Joy-Con控制器或 Pro控制器均可操作，並支援自動存檔與快速存檔功能，大幅降低過去因死檔或忘記存檔而造成挫折的風險。

戰鬥系統則維持回合制傳統，並對部分機制（如經驗值分配、UI介面）進行優化。在《勇者鬥惡龍 III》中，可自由創建隊伍職業，選擇個性與成長方向，為後續的RPG發展樹立開放式隊伍編制的典範。

雖然屬於復刻性質的作品，其在市場上的反應仍相當熱烈。尤其在日本本地市場，因《勇者鬥惡龍》系列具有國民級地位，推出後吸引眾多懷舊玩家與收藏者支持。

不過在海外地區，評價則較為兩極。部分玩家認為畫面風格的重製不夠忠於原作像素風格，尤其對於懷舊氣氛有所期待的玩家來說，畫面過於「手機風」而顯得缺乏誠意。此外，僅提供繁體中文與英文版本，並未有語音演出，也缺乏一些近代JRPG中常見的便利機能（如地圖導航、任務追蹤等），使得部分新玩家可能難以適應。

即便如此，作為RPG發展史上的經典再現，仍獲得多數評論者的肯定。不僅具有高度的歷史價值，也提供紮實的遊戲內容與耐玩度。尤其《勇者鬥惡龍 III》的職業系統與龐大世界觀，被認為是當年最先進的RPG設計之一。

《勇者鬥惡龍 123 合輯》是 Nintendo Switch平台上極具歷史意義的合集作品，對於喜愛經典JRPG、勇者鬥惡龍系列或想回味遊戲起源的玩家來說，是不可錯過的冒險旅程。即便畫面風格的重製方式仍存在爭議，但從遊戲本體、劇情深度與系統設計來看，仍成功將三部傳奇作品完整地保留並重現於現代平台，具備收藏與遊玩價值並重的魅力。

Dragon Quest 1+2+3 Collection (Japanese title: ドラゴンクエスト 1～3) is a compilation of the classic RPG trilogy released by Square Enix exclusively for the Nintendo Switch. First launched in Japan in 2019, the collection brings the legendary RPGs that pioneered the genre in the 1980s to a new generation of players, offering longtime fans a chance to revisit the origins and newcomers a gateway into the roots of the Dragon Quest franchise.

The collection includes the first three entries in the series: Dragon Quest I, Dragon Quest II: Luminaries of the Legendary Line, and Dragon Quest III: The Seeds of Salvation. These titles are collectively known as the Roto Trilogy, chronicling the legend of the hero “Loto” (also known as “Erdrick” in Western localizations) and the heroic journeys of his descendants.

In Dragon Quest I, the protagonist—a descendant of Loto—embarks on a journey to rescue a kidnapped princess and defeat an evil overlord. While the story is simple, it established the foundation for the epic narratives that would become a hallmark of Japanese RPGs.

Dragon Quest II takes place a century later, featuring a trio of royal descendants who must unite to confront the sinister deity Hargon. This sequel expands the world and complexity of gameplay, setting the stage for more ambitious RPG storytelling.

Dragon Quest III serves as the chronological prequel, telling the origin story of Loto himself. With its open-ended party creation system, character customization, and expansive world, the third installment was a groundbreaking RPG at the time and remains one of the most beloved entries in the franchise.

The Switch version is based on the remastered releases previously available on mobile devices and PlayStation 4. It adopts a hybrid presentation style that fuses classic 2D pixel art with high-definition UI elements, preserving the nostalgic charm while improving accessibility and readability for modern players. The gameplay has been fine-tuned for smoother operation and quality-of-life improvements.

In terms of functionality, the Switch edition supports handheld, tabletop, and TV modes, and is compatible with both Joy-Con and Pro Controllers. It features auto-save and quick save functions, reducing the risk of lost progress due to unexpected in-game deaths or forgetting to manually save—an issue that plagued earlier versions.

The turn-based battle system remains faithful to the originals, with some adjustments to UI and mechanics such as experience point distribution. Dragon Quest III in particular stands out with its robust party-building options, allowing players to choose from various character classes and personal traits, influencing growth paths and playstyles. This level of freedom set a precedent for future RPGs.

Despite being a reissue of older titles, the collection was met with strong enthusiasm, especially in Japan, where Dragon Quest enjoys national-level popularity. The release drew support from both nostalgic fans and collectors.

However, reception in overseas markets was more mixed. Some players criticized the remaster’s visual style as too “mobile-like,” feeling it lacked the authenticity of the original pixel art. The collection offers only Traditional Chinese and English language options, lacks voice acting, and omits several modern JRPG conveniences like mini-maps and quest tracking, which may pose challenges for new players unfamiliar with old-school design.

Even so, the collection is widely recognized for its historical significance and solid gameplay foundation. Critics praised the enduring charm of the narratives and systems, particularly Dragon Quest III’s deep worldbuilding and pioneering class mechanics, which were considered cutting-edge at the time.

In conclusion, the Dragon Quest 1+2+3 Collection is a highly significant release on the Nintendo Switch. For fans of classic JRPGs, Dragon Quest, or those curious about the genre’s origins, it offers an essential adventure worth experiencing. While its visual presentation remains a point of debate, the faithful recreation of three foundational RPGs makes it a collection of both historical and gameplay value.