《Subnautica 2》是由Unknown Worlds Entertainment 開發、並由KRAFTON, Inc.發行的開放世界水下生存冒險遊戲，預計於2026年在Steam平台推出。本作是《Subnautica》系列的全新篇章，將再次踏入一個陌生而神秘的外星海洋世界，不同於前作的是，這次不僅可以單人遊玩，還能與最多三名好友進行合作探索。

劇情背景設定在一個全新的外星海洋星球。玩家是一名開拓者，搭乘太空船抵達這個陌生世界，但很快便發現情況並不單純。船上的人工智慧不斷要求繼續執行任務，然而這顆星球對人類來說極度危險，幾乎無法生存。唯一的生路，是改變人類的本質，去適應這片海洋世界。在探索過程中，會遇到各式各樣的智慧或非智慧生物，還要揭開星球失衡的真相，並直面「究竟自己是誰」以及「人類能否與這世界共存」等更深層的哲思。

在操作與玩法上，延續系列的核心生存機制，但進行進一步的進化。在廣袤的水下環境中收集資源，製作潛艇、工具與生存設備，並藉由全新升級的建造系統打造可自訂的基地。除了基礎裝備如掃描器與手電筒之外，還能逐步解鎖高階的水下工具與機械，用以探索更深層、也更危險的海域。隨著探索進展，玩家能掃描與研究不同的生物樣本，甚至進行基因改造，讓自己的身體進化以適應嚴酷環境，這也是本作最具突破性的生存設計之一。

遊戲中的世界設計極為豐富。除了熟悉的淺水珊瑚區，還有高聳的深海斷崖、絢爛的水底森林、乃至漆黑壓抑的深淵。每個生態系統都有獨特的生物群落，從微小的魚類到龐大的海怪「利維坦」等巨型生物皆一應俱全。但這個世界並非純粹的美麗天堂，它存在著某種失衡與危機，玩家必須逐步揭開真相。

值得一提的是，首次引入最多四人連線合作模式，可與朋友一同探索遺跡、建設基地，或挑戰未知的深海領域。這讓遊戲氛圍從孤獨的求生，延伸為群體冒險，增添更多互動性與變化性。

從市場角度來看，這款遊戲自消息公開以來就備受矚目。前兩代《Subnautica》憑藉著「孤獨探索外星海洋」的沉浸式體驗，已建立起龐大而忠實的玩家群體。而《Subnautica 2》在繼承原作核心魅力的同時，新增多人合作與基因進化等新元素，讓玩家期待值持續升高。不過官方已明確表示，本作將以「搶先體驗」形式推出，這意味著遊戲在初期版本可能存在 bug、性能問題或尚未完成的劇情內容。但開發團隊承諾會持續更新，加入更多生態區域、生物、建築模組與劇情片段，並邀請玩家共同參與測試與改進。

總體而言，《Subnautica 2》是融合科幻與生存要素的沉浸式冒險作品。既保留系列一貫的深海神秘氛圍與驚心動魄的探索體驗，又藉由多人模式與身體進化機制帶來新鮮感。無論是單人遊玩的孤獨感，還是與朋友一同探索未知的刺激，都將使這部作品成為生存冒險類遊戲中的重要新標竿。

Subnautica 2 is an open-world underwater survival adventure game developed by Unknown Worlds Entertainment and published by KRAFTON, Inc., scheduled for release on Steam in 2026. As the newest chapter in the Subnautica series, the game once again invites players to plunge into an unfamiliar and mysterious alien ocean world. Unlike its predecessors, this installment not only supports solo play but also introduces cooperative exploration with up to three friends.

The story unfolds on a completely new alien ocean planet. Players take on the role of a pioneer arriving on this strange world aboard a spacecraft, only to quickly realize that things are far from simple. The ship’s AI insists that the mission must go on, but the planet proves dangerously inhospitable to humans. The only hope of survival lies in altering the very essence of humanity to adapt to the ocean environment. Along the journey, players will encounter intelligent and non-intelligent lifeforms, unravel the mystery behind the planet’s imbalance, and confront deeper philosophical questions such as “Who am I really?” and “Can humanity coexist with this world?”

Gameplay builds upon the core survival mechanics of the series while expanding them with new systems. Players will scavenge resources in vast underwater landscapes, craft submarines, tools, and essential survival gear, and use an upgraded construction system to build customizable bases. Beyond basic equipment like scanners and flashlights, advanced tools and machinery can be unlocked to explore deeper and more perilous regions of the ocean. As exploration progresses, players can scan and study diverse lifeforms, collect biological samples, and even undergo genetic modifications, evolving their bodies to withstand the planet’s harsh environment—one of the most groundbreaking features of the game’s survival design.

The world design is richly varied, ranging from shallow coral reefs to towering deep-sea cliffs, vibrant underwater forests, and oppressive, pitch-black abysses. Each ecosystem is populated by unique species, from tiny fish to massive leviathan-like creatures. Yet this world is not merely a beautiful paradise—something is fundamentally out of balance, and players must gradually uncover the truth.

A notable new feature is the introduction of four-player online co-op, allowing friends to explore ancient ruins, build bases, and tackle the mysteries of the deep together. This transforms the game’s atmosphere from solitary survival into shared adventure, adding new layers of interactivity and replayability.

From a market perspective, Subnautica 2 has already drawn significant attention since its announcement. The previous installments built a strong and loyal fanbase through their immersive sense of “lonely exploration” in alien oceans. By preserving that core appeal while introducing cooperative play and genetic evolution, the sequel has heightened player anticipation. However, the developers have confirmed that the game will launch in Early Access, meaning that initial versions may contain bugs, performance issues, or incomplete story content. The team promises frequent updates, with new biomes, creatures, building modules, and narrative chapters added over time, while inviting players to actively contribute feedback.

Overall, Subnautica 2 is shaping up to be an immersive blend of science fiction and survival gameplay. It preserves the series’ signature atmosphere of deep-sea wonder and peril while innovating through multiplayer and genetic adaptation systems. Whether experiencing the solitude of survival alone or embarking on thrilling adventures with friends, this title is poised to become a major milestone in the survival-adventure genre.