《惡魔城－血之輪迴》（Castlevania: Rondo of Blood）是由 Konami 為 PC Engine 的 Super CD-ROM² 系統開發的橫向卷軸動作遊戲，由萩原徹（Tōru Hagihara）擔任總監，於1993年10月29日在日本首發。本作是惡魔城系列的第十部作品，也是系列首次在CD-ROM 平台推出，因此利用光碟的大容量特性加入CD音質配樂、動畫化過場，以及更多精緻的場景細節。劇情承接系列主線，主角利希特·貝爾蒙特（Richter Belmont）需拯救被吸血鬼德古拉伯爵（Count Dracula）綁架的戀人安妮特（Annette），同時也要解救其他被囚禁的角色，最終面對德古拉展開決戰。

遊戲故事背景設定在「和平與繁榮的背後，邪惡仍蠢蠢欲動」的世界，百年後，德古拉復甦，他能化身為蝙蝠、狼或霧，尤其擅長在夜晚行動，吸食年輕女性的鮮血以保持永生，並掌控惡魔城作為邪惡勢力的核心。主角利希特是貝爾蒙特家族的傳人，正義感強烈，善於使用家族傳承的鞭子，也能操作斧頭與飛刀。被拯救後的瑪麗亞·雷納（Maria Renard）則以魔法和動物技能進行攻擊，例如召喚鴿子或隱入烏龜殼內，是次要可操作角色。其他的支援角色還包括安妮特、神父莎夫特（Shaft）、修女特拉、以及醫生之女艾瑞斯（Iris），每個角色都有鮮明性格和故事背景，使得遊戲的劇情和角色互動更具深度。

在玩法上，維持傳統橫向卷軸平台動作的精髓，同時利用CD-ROM的容量加入精美的動畫過場與手繪風格的劇情演出。共有8個主要關卡，含引導關卡與分支路線則達13面。每個關卡中，需擊敗各種敵人及關底 BOSS，並解救被綁架的角色。不同於早期系列透過升級鞭子強化戰力，本作取消此機制，取而代之的是「Item Crash」特殊副武器攻擊，使用時短暫無敵並發動強力攻擊，但會消耗大量心數。亦保留分支路線系統，每關可能隱藏不同進路，需破壞牆壁或刻意掉落坑洞才能發現隱藏路線，增加探索與重玩價值。

控制方面，可透過方向鍵或搖桿移動角色，按鍵操作包括跳躍、攻擊、使用副武器與特殊技能。上下樓梯時的操作也被精細化設計，控制上下樓梯的移動或跳下樓梯。提供「舞台選擇」功能，完成關卡後可在檔案畫面重新選擇，並可以切換到瑪麗亞角色進行遊玩，使整體遊戲流程更加靈活。

音樂方面，作為CD遊戲，引入現場吉他與電子合成音，將經典《Vampire Killer》、《Bloody Tears》、《Beginning》等曲目重新編曲，呈現略帶流行風格的搖滾音樂，同時保留系列特有的緊張氛圍。手繪動畫過場和角色配音的加入，也使劇情表現更為生動，特別是使用瑪麗亞角色時，遊戲的對話與過場更顯輕鬆活潑。

市場評價方面，本作被廣泛認為是系列的經典之作，不僅因為其精美的視覺與音樂，還因為在玩法上的革新與角色設計的豐富性。首次採用CD-ROM媒體使遊戲畫面和音樂品質大幅提升，而動畫過場和分支路線系統則增加探索和重玩樂趣。玩家與評論者普遍肯定本作在保留傳統橫向動作元素的同時，加入更多策略性與劇情深度，使其成為貝爾蒙特家族故事中的重要篇章。此作後來也被重製於Super Nintendo、PlayStation Portable及Wii虛擬主機，並在2018年隨《Castlevania Requiem》登上PlayStation 4，再度受到新舊玩家的高度關注與好評，成為惡魔城系列中不可或缺的經典代表作。

Castlevania: Rondo of Blood is a side-scrolling platform-adventure game developed by Konami for the PC Engine’s Super CD-ROM² system, directed by Tōru Hagihara, and released in Japan on October 29, 1993. As the tenth installment in the Castlevania series, it marked the franchise’s first release on a CD-ROM platform, allowing for CD-quality soundtracks, animated cutscenes, and more detailed stage designs. The story follows Richter Belmont, the protagonist, as he sets out to rescue his kidnapped lover Annette from Count Dracula, while also saving other captives along the way, ultimately culminating in a final confrontation with Dracula himself.

The narrative is set against the backdrop of a world where, despite prosperity and peace, evil continues to fester. After a century of dormancy, Dracula returns, capable of transforming into a bat, a wolf, or mist, and most active at night. He feeds on young women to maintain eternal life and rules the Demon Castle as the core of all evil. The main character, Richter Belmont, a descendant of the Belmont clan, is righteous and skilled in vampire hunting, wielding the family’s iconic whip along with secondary weapons such as axes and throwing knives. Once rescued, Maria Renard becomes a playable character, employing magical and animal-based attacks, such as summoning doves or hiding inside a turtle shell. Supporting characters, including Annette, the dark priest Shaft, the nun Tera, and Iris, the doctor’s daughter, add depth and personality to the story.

Gameplay in Rondo of Blood retains the classic side-scrolling action elements of the series, enhanced by the CD-ROM format’s capacity for detailed graphics and animated story sequences. The game consists of eight main stages, expanding to thirteen with introduction and branching stages. Each stage challenges players to defeat enemies and bosses, while rescuing kidnapped characters. Unlike earlier entries that relied on whip upgrades to strengthen the player, this installment introduces the "Item Crash," a special sub-weapon attack that renders the character temporarily invincible while unleashing a powerful attack, consuming a large number of hearts. The branching path system encourages exploration, with hidden routes that require clever maneuvers, such as breaking walls or intentionally falling into pits, increasing replayability.

Controls are precise, allowing movement via directional keys or joystick, with buttons dedicated to jumping, attacking, using sub-weapons, and performing special skills. Stair navigation is finely tuned, giving players the ability to move up and down or jump off stairs. Completed stages can be revisited through a "Stage Select" feature, and the ability to switch to Maria adds flexibility and variety to the gameplay.

Musically, Rondo of Blood utilizes CD-quality tracks, featuring live guitars and synthesized backing to complement the classic Castlevania compositions such as Vampire Killer, Bloody Tears, and Beginning, now rearranged with a slightly more pop-rock flair. Hand-drawn animated cutscenes and character voice acting bring the story to life, with Maria’s perspective providing a lighter, more whimsical tone to the narrative and cutscenes.

Critically, Rondo of Blood is widely regarded as a classic within the Castlevania franchise. It was praised for its beautiful visuals, enhanced audio, gameplay innovations, and rich character design. The CD-ROM format allowed for high-quality graphics and music, while the branching stage system and rescue mechanics added strategic depth and replay value. The game has been remade for the Super Nintendo, PlayStation Portable, and Wii Virtual Console, and was re-released in 2018 as part of Castlevania Requiem for the PlayStation 4, earning renewed acclaim from both new and veteran players. It remains a pivotal and iconic entry in the Belmont family saga and the Castlevania series as a whole.