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Eternights
Eternights
from Wikipedia
Eternights
Steam cover
DeveloperStudio Sai
PublishersStudio Sai
Crunchyroll Games (Mobile)
EngineUnity[3]
Platforms
Release
  • PS4, PS5, Windows
  • 12 September 2023[1]
  • Nintendo Switch
  • 17 October 2024[2]
  • Android, iOS
  • 20 November, 2024
GenresAction role-playing, dating sim
ModeSingle-player

Eternights is a 2023 dating sim action role-playing game developed and published by Studio Sai. The game was released digitally for PlayStation 4, PlayStation 5, and Windows on 12 September 2023.[4] It was then released physically for PlayStation 4 and PlayStation 5 on 16 November 2023.[5] It was later released for Nintendo Switch on 17 October 2024.[6] It was finally released for Android and iOS on 20 November 2024 for Crunchyroll subscribers as part of the Crunchyroll Game Vault program.[7]

Eternights received mixed reviews from critics and sold 150,000 units by April 2024.

Gameplay

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Combat in Eternights is that of a hack and slash game. Dodging an enemy attack with precision slows down time, giving the player a better opportunity to attack. Hitting an enemy enough times within a short period creates a combo, allowing the player to perform a stronger attack or a finisher.[8][9] Attacking enemies or performing Perfect Dodges charges the Elemental Gauge, and parts of the Gauge can be used for an Elemental Fist attack that breaks enemy barriers if the player succeeds in a quick-time event.[10] SP can be spent during battle to use special abilities which are granted through other characters.[11]

Choosing certain dialogue options while talking to other characters can increase the protagonist's Social Stats, as well as his relationship level with other characters. Increasing the relationship level with another character grants the protagonist new abilities in combat.[9]

The game includes a calendar system, where doing certain tasks causes time to pass, changing what activities are available.

Premise

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An anti-aging drug called Eternights mutates people into monsters, and supernatural events begin to occur. An 18-year-old boy (who is named by the player) is attacked by an unknown woman named Delia who cuts his arm off using her scythe, and another woman he met on a dating app replaces his lost arm with a magical, glowing one that can also transform into a sword, allowing him to fight the monsters. Along the way are his best friend as well as the pop star idol he loves.[12]

Reception

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Pre-release

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Before release, Eternights drew comparisons to the Persona video game series due to its premise of teenagers fighting supernatural enemies while including social and calendar elements in the gameplay.[8][9][13] Writing for Kotaku, Kenneth Shepard praised the game for including a gay romance option, but considered the character writing in the game's demo to be superficial and the combat to be "flimsy as hell", noting a "lack of weight" to attacks and movement in the game's action sequences.[13] Reviewing a preview version from the Summer Game Fest Play Days, Push Square's Liam Croft was impressed by the game's cutscene visuals, and called the dialogue options "engaging", though "occasionally creepy".[8]

Post-release

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Eternights received "mixed or average" reviews from critics for the PS5 version, while the PC version received "generally favorable" reviews, according to review aggregator website Metacritic.[21] In Japan, four critics from Famitsu gave the game a total score of 28 out of 40, with each critic awarding the game a 7 out of 10.[17]

Sales

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By April 2024, Eternights had sold 150,000 units worldwide.[22]

References

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Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
Eternights is a and action that combines romantic relationship-building with hack-and-slash combat in a post-apocalyptic setting overrun by mutated creatures. Developed and published by the independent studio Studio Sai in collaboration with Kepler Ghost, it follows a young protagonist who, amid a global crisis triggered by a drug called "Eternights" that transforms humans into zombie-like monsters, teams up with survivors to scavenge, fight, and pursue romantic connections before time runs out. The game was initially released digitally on September 12, 2023, for , , and Windows via and , with a physical edition following later that year and a port launching on October 17, 2024. Eternights features a day-night cycle blending dungeon exploration and real-time with mechanics to build relationships. The title emphasizes themes of , survival, and personal growth, featuring full , anime-style visuals, and a blending pop and electronic elements, which have been praised for innovative genre fusion and character development. As of 2025, Eternights has received "Very Positive" user reviews on , with over 2,700 ratings praising its engaging narrative and accessible , though some note minor technical issues like UI jankiness.

Development

Concept and production

Studio Sai, an independent game development studio based in Kirkland, Washington, was founded in 2020 by Jae Hyun Yoo and Kyoungche Kim following Yoo's departure from a full-time position at Apple. Eternights marks the studio's debut major project, evolving from Yoo's earlier hobby work on game jams and prototypes. Yoo, who previously contributed to titles at Blizzard Entertainment and Riot Games, handled much of the initial development solo, including programming, art, story writing, and production oversight, with part-time contractors assisting on specialized tasks like animations. The game's concept originated in mid-2019 as a hobby project by Yoo, blending real-time action RPG combat with dating sim and visual novel elements set in a post-apocalyptic world, where players balance survival dungeon exploration with building romantic relationships. This hybrid approach draws inspiration from the Persona series—particularly Persona 5 for its calendar-based structure and character-driven romances—and early Devil May Cry titles for fluid, stylish combat mechanics, while incorporating emotional depth influenced by films from director Makoto Shinkai, such as The Garden of Words. The design aims to integrate high-stakes action sequences with intimate narrative moments, subverting traditional dating sim conventions by tying romance progression to apocalyptic survival challenges. Production began in earnest in June 2020 when Yoo transitioned to full-time development, spanning approximately three years until the September 2023 release, with a publishing partnership with Kowloon Nights announced on June 2, 2022, positioning it as a PlayStation console exclusive (alongside PC release). Built using the Unity engine for its 2D side-scrolling gameplay, the team—consisting of Yoo as the sole full-time member supplemented by under 20 collaborators including external animation studios—faced key challenges in balancing fast-paced combat with deliberate narrative pacing and visual novel-style dialogue trees. Iterative revisions to the story, informed by consultants, and self-taught skills in 3D modeling and rigging extended the timeline, while collaborations with a Korean studio handled animated cutscenes to enhance emotional impact. Following the game's release, Studio Sai secured $7 million in seed funding from Krafton in October 2023 to support the development of its second title. Art direction emphasizes an anime-inspired aesthetic with hand-drawn character designs that prioritize expressiveness for romantic interactions and dynamic animations for monstrous enemies and combat fluidity, achieved through a melancholic palette of indigo, purple, and magenta tones to evoke a dreamlike apocalypse. The original soundtrack, composed by Spencer Bambrick of Serial Lab Studios, features over 130 tracks blending for intense action sequences, lo-fi and piano-driven pieces for intimate romance scenes, cinematic orchestration, and elements to underscore the narrative's themes of endless night and survival.

Announcement and pre-release

Eternights was first publicly revealed during the PlayStation State of Play presentation on June 2, 2022, where publisher Kowloon Nights unveiled a highlighting the game's unique fusion of fast-paced action combat against monstrous foes and romantic elements set against an apocalyptic backdrop. The trailer emphasized the narrative premise of young survivors navigating love and survival amid a world-ending catastrophe, generating early buzz for its anime-inspired visuals and genre-blending approach. A playable demo became available on during Steam Next Fest in June 2023, allowing players to experience the opening chapter, introductory dungeon exploration, and initial romance routes with select characters. The demo showcased the core loop of balancing combat missions with relationship-building interactions, receiving favorable previews for its engaging mechanics and emotional storytelling. Developer Studio Sai hosted a livestream to coincide with the demo's launch, encouraging community feedback to refine the experience ahead of full release. Kowloon Nights handled global publishing duties outside Asia, partnering with Studio Sai for development and distribution on PlayStation 4, PlayStation 5, and PC via Steam and Epic Games Store. For the Asian market, X.D. Network secured publishing rights, facilitating regional adaptations. The game was localized into multiple languages to broaden accessibility, including English, Japanese, Simplified Chinese, French, Italian, German, Spanish, Korean, and Portuguese-Brazil, with full audio support in English, Japanese, and Korean. Pre-release momentum built through several high-profile events, including a spotlight at Day of the Devs during 2023, where an extended demo highlighted the blend of adrenaline-fueled battles and heartfelt character moments. The release date was officially announced as September 21, 2023, during the PC Gaming Show on June 11, 2023, later advanced to September 12 via a new trailer at the 2023 Future Games Show. Developer interviews around these showcases, such as one with GameRant, delved into the themes of forging deep emotional bonds and friendships amid apocalyptic chaos, drawing inspiration from real-world uncertainties like the to underscore resilience and human connection. In a AMA, lead developer Jae Hyun Yoo emphasized how the game's narrative explores young people prioritizing relationships and personal growth even as the world crumbles, aiming to evoke empathy and hope.

Gameplay

Combat mechanics

Eternights features a real-time hack-and-slash combat system set in a post-apocalyptic world overrun by infected monsters. The player controls the , who wields weapons such as swords to execute light and heavy attack combos against enemies. A circular gauge fills with successful hits, allowing the release of powerful special attacks when full. Precision dodging is central to the mechanics, as a perfect dodge—timed to a visual flash and audio cue—activates slow-motion, enabling counter flurries and setting up death blows on staggered foes. The bond system integrates directly into , where building relationships with companions unlocks their assist abilities for combo attacks and support. For example, higher bond levels with characters like Yuna enable healing bursts for support, while others provide ranged damage or defensive buffs, allowing a party of up to four members in battles despite controlling only the protagonist. These assists are crucial for handling tougher encounters, including boss fights that incorporate bullet-hell-style patterns requiring precise dodging and timing to avoid overwhelming projectile assaults. Progression occurs through a skill tree system powered by resources like Black Essence, collected from enemies and used to unlock upgrades across categories such as strength (boosting damage), agility (improving dodge windows), and endurance (enhancing health and capabilities). Companion-specific trees, upgraded with White Essence from sessions, further enhance assist potency and stats indirectly tied to bonds. complements in linear levels filled with environmental hazards and puzzles, featuring hidden collectibles that yield cosmetic unlocks like outfits, though paths occasionally branch in key chapters without an open-world . The game offers multiple difficulty modes—Story, Normal, and Expert—to adjust enemy health, attack speed, and timing leniency for dodges and parries, with no content locked behind choices. A New Game+ mode extends replayability by carrying over upgrades while increasing challenge scales.

Relationship and visual novel elements

Eternights incorporates segments interspersed between combat missions, where players engage in branching dialogues that shape character relationships and narrative progression. These interactions occur primarily in the game's hub area, allowing players to spend time with companions during morning and evening slots, limited to one per session to encourage focused bonding. Dialogue choices align with the protagonist's personality stats—such as Expression for Yuna, Acceptance for Sia, Confidence for Min, and Courage for Yohan—boosting affinity ranks up to level 7 for each of the four main romanceable characters: Yuna, Min, Sia, and Yohan. Advancing affinity unlocks deeper conversations, date events, and romantic confessions, with choices determining romantic commitment or platonic friendships. The game features multiple endings—primarily four romance-specific outcomes, alongside bad and secret variants—contingent on affinity scores, loyalty to a single partner, and pivotal decisions in the final act; pursuing multiple romances precludes certain secret endings revealed via post-credits QR codes. Replayability is enhanced through chapter selection and modes, enabling efficient route exploration without restarting from the beginning. Narrative playtime spans 10-12 hours for the main story, extending to 18-20 hours for completing all routes. Date events incorporate minigames, such as rhythm-based dancing sequences, to heighten emotional tension during outings like stargazing or meteor showers. Quick-time events (QTEs) appear in intimate scenes to simulate vulnerability and connection, though the game maintains a Teen rating by avoiding explicit content. Player choices in these elements influence assists from bonded characters, providing minor buffs without altering the core plot until the finale. The explores themes of trauma recovery amid apocalyptic , with characters confronting personal guilt and loss through relationships, though portrayals often blend humor with darker moments for a lighter tone; hints of relational complexity arise from multi-romance options, but the story emphasizes monogamous commitments and in interactions.

Plot and characters

Setting and premise

Eternights is set in a near-future post-apocalyptic ravaged by the widespread use of an experimental anti-aging drug also named Eternights, which unexpectedly mutates its users into grotesque, aggressive monsters known as . This catastrophe, triggered by humanity's pursuit of through advanced , leads to the collapse of global society, forcing survivors to huddle in fortified urban shelters like the central hub where the story unfolds. The world-building emphasizes a modern, anime-inspired aesthetic with remnants of high-tech now overrun by horrors, underscoring themes of technological overreach and the fragility of human civilization. The premise centers on an 18-year-old male protagonist, an ordinary young man initially focused on improving his luck with , who is thrust into the chaos when the outbreak escalates during a . After a brutal encounter that costs him his arm, he awakens with newfound supernatural abilities granted by a mysterious , compelling him to ally with a of fellow young survivors to combat hordes and investigate the drug's origins. As they venture into monster-infested dungeons beyond the safe zones, the narrative explores the protagonist's personal growth amid the , highlighting human connections as a counter to isolation and despair. The story is divided into five acts and unfolds over a calendar system spanning multiple weeks, alternating between high-stakes combat expeditions into dungeons and periods of respite in the hub city (Shelter B15) for building alliances and reflecting on the crisis. Advanced weaponry and prototypes developed pre-apocalypse prove futile against the mutations, reinforcing the lore's on innovation's unintended consequences. The tone weaves horror from the relentless threat of transformation, lighthearted humor in interpersonal dynamics, and romantic tension through budding relationships, all conveyed via vibrant anime-style cutscenes that propel the high-level plot without delving into individual resolutions.

Main characters

The of Eternights is a customizable young man in his late teens (canonically 18, Libra zodiac), depicted as an average slacker navigating the while seeking romantic connections through a . He possesses black hair and purple eyes and is initially shown in casual attire consisting of a white shirt and dark jeans, reflecting his pre-outbreak ordinary life. Skilled in close-quarters combat after receiving enhanced abilities, he serves as the central playable character, with his personality shaped by player choices in dialogue and actions; he is voiced by Brandon Jay in the English dub. Yuna is an 18-year-old (Leo zodiac) and one of the primary companions, characterized by her bubbly and optimistic personality that masks deeper insecurities from her fame-driven past. As a human survivor, she contributes healing support in battles and embodies the game's themes of vulnerability beneath a cheerful exterior; her affinity path emphasizes emotional openness. Yuna features vibrant sprite designs with over 20 expressions to convey her energetic demeanor, and she is voiced by Risa Mei in English and an undisclosed actor in Japanese. Sia, a stoic genius researcher with a gothic aesthetic, hails from an elite pre-outbreak background and relies on technological implants for her expertise and analytical mindset. Her long black hair and Scorpio zodiac association highlight her intense, introspective traits, while her route explores breaking through emotional barriers. She provides ranged combat utility and intellectual guidance to the group, with detailed 2D sprite art capturing her reserved expressions; Sia is voiced by in English. Min serves as the team's cheerful and , a shy yet kind-hearted athlete who copes with survivor's guilt through humor and supportive roles, offering healing and during missions. Her black hair with red bangs and Aries zodiac sign underscore her passionate, gentle nature, with her personal arc focusing on overcoming self-doubt and naivety. Min's designs include expressive sprites for her awkward, endearing moments, and she is voiced by in the English version. Yohan rounds out the core group as a mysterious, handsome ally with an easygoing yet teasing personality, providing buffs and tactical support in while his enigmatic hints at hidden depths without revealing his full origins or age. His blue eyes and Gemini zodiac traits emphasize his adaptable, intriguing role as the male romance option. Like the others, Yohan's character model features rich sprite animations with multiple expressions, voiced by Aleks Le in English. Supporting characters include Chani, the protagonist's flirtatious best friend who offers and advice on relationships, and , a deity-like figure who empowers the team against the V-Hazard threats. Rival hunters and the SIA commander appear in minor arcs, adding tension through their competitive pursuits, but lack romantic elements. All main characters benefit from the game's multilingual in English, Japanese, and Korean, enhancing their emotional depth through professional performances.

Release

Platforms and dates

Eternights was initially released on September 12, 2023, for Microsoft Windows via and , , and . Physical editions for and followed in November 2023, published by . A port for followed on October 17, 2024, featuring optimized controls and interface adjustments for handheld play, with a physical edition published by Maximum Entertainment. The standard edition retailed for $29.99 USD, while the Deluxe Edition, including the digital soundtrack and artbook, was priced at $39.99 USD. An initial patch released shortly after launch on September 20, 2023, addressed startup issues, including black screen errors and potential settings corruption that could affect localization display. The game includes New Game+ mode, available since launch. For the PC version, minimum system requirements include an i5-6500 or 3 1200 processor, 8 GB RAM, NVIDIA GTX 1050 or RX 560 graphics, and 12 GB storage space. The game follows a single-purchase model with no microtransactions.

Marketing and promotion

The marketing and promotion of Eternights focused on highlighting its unique fusion of dating simulation and action RPG mechanics through targeted trailer campaigns and digital outreach. A launch trailer debuted at 2023 during the Future Games Show, showcasing the game's genre-blending post-apocalyptic setting, fast-paced combat, and romantic elements to generate buzz ahead of its September release. Complementing this, a series of character spotlight videos were released on , delving into the protagonists' backstories and relationships, drawing in fans of anime-inspired narratives. Collaborations extended the game's visibility into and gaming communities. Influencer outreach played a key role in building pre-release hype, with review codes distributed to YouTubers ranging from major outlets like to niche and indie gaming creators. This effort amplified word-of-mouth promotion through streams and early impressions. Post-launch activities sustained momentum with a free demo extension released in 2024, incorporating additional content from the full game to attract late adopters, alongside holiday sales bundles pairing Eternights with similar indie titles like other dating-action hybrids during and promotions.

Reception

Critical reviews

Eternights received mixed or average reviews from professional critics upon release. On Metacritic, the PC version scored 75/100 based on 15 critic reviews, while the PlayStation 5 and Nintendo Switch versions both earned 68/100 from 15 reviews each. On OpenCritic, it holds an average of 72/100 from 46 critics, with 55% recommending the game. Critics frequently praised the game's innovative blend of dating sim and action RPG mechanics, drawing comparisons to the Persona series for its fusion of heartfelt relationships and zombie-apocalypse combat. GameGrin awarded it 8/10, calling it "an enjoyable action RPG full of crude humour, lovestruck teens, and monstrous abominations out to kill you." The anime-inspired art style and soundtrack also drew acclaim; Checkpoint Gaming highlighted the "gorgeous 2D animated cutscenes" and strong voice acting that enhanced emotional moments. Many noted the title's ability to deliver surprising depth and wit in character interactions despite its concise 10-15 hour runtime. Common criticisms centered on the game's brevity, which limited content depth and replayability, leaving some story arcs feeling underdeveloped. gave it 5.5/10, pointing out shallow relationship-building that lacked intimacy beyond surface-level dialogue. Uneven difficulty spikes in combat were another frequent issue, with some battles feeling unfairly punishing due to imprecise controls and repetitive enemy designs. User reception proved more favorable, especially on PC. On , Eternights earned a "Very Positive" rating with 83% positive reviews from over 3,100 users as of November 2025, with feedback often commending the inclusive character romances and brisk pacing that avoided filler. The game received no major awards but earned a for Best Independent Game in the 2023 PlayStation Blog Game of the Year Awards.

Sales and legacy

Eternights achieved commercial success as an indie title, selling over 200,000 units worldwide by August 2024, according to an announcement from developer and publisher Studio Sai. The game demonstrated strong digital performance on platforms like , where it garnered over 3,100 user reviews and peaked at 1,418 concurrent players shortly after launch. Physical editions, released for and , contributed modestly to overall sales, appealing to collectors in limited runs. Post-launch support included ports to additional platforms, with a version launching digitally and physically on October 17, 2024, followed by a mobile release for Android and on November 20, 2024, exclusive to subscribers. Studio Sai also released a digital artbook DLC for PC, providing behind-the-scenes insights into the game's development. The PC community embraced modding, with tools on enabling visual enhancements like reshades and UI adjustments, alongside cheats for extended playthroughs via third-party trainers. The game's legacy lies in its innovative blend of and action RPG elements. Its fan community, centered on the official r/Eternights subreddit with thousands of members, has produced fanfiction exploring alternate endings and character backstories, as well as costumes replicating outfits from characters like Min. Eternights earned praise for its inclusive LGBTQ+ representation, featuring same-sex romance options like the relationship with male character Yohan, which advanced narratives in the genre without . By 2025, the game supported 10 languages, including English, Japanese, Korean, Simplified and Traditional Chinese, French, German, Italian, Portuguese-Brazil, and Spanish-Latin America, broadening its global accessibility. In 2023, Studio Sai announced development of a follow-up project with an expanded team using , positioned as a continuation of their dating-action formula though not a direct sequel.

References

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