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Oxygen Not Included

96%Game Brain Score
gameplay, graphics
grinding, stability
96% User Score Based on 35,679 reviews

Platforms

LinuxPCEpic GamesCloudMac OSNVIDIA GeForce NOWSteam DeckWindows

About

"Oxygen Not Included" is a space colony simulation game where players manage a crew of duplicants, building and maintaining a sustainable underground base. Resources are limited and must be managed carefully, including oxygen, water, and power. The game features complex systems and challenges, requiring players to balance the needs of their duplicants with the constraints of their environment.

Oxygen Not Included screenshot
Oxygen Not Included screenshot
Oxygen Not Included screenshot
Oxygen Not Included screenshot
Oxygen Not Included screenshot
Oxygen Not Included screenshot

96%
Audience ScoreBased on 35,679 reviews
gameplay862 positive mentions
grinding333 negative mentions

  • gameplay
    2,632 mentions Positive Neutral Negative

    The gameplay of "Oxygen Not Included" is characterized by its deep and complex mechanics, requiring players to manage resources like oxygen, food, and temperature while navigating intricate systems of gases and liquids. Many players find the learning curve steep, with a significant amount of trial and error involved in mastering the various mechanics, but those who invest the time often describe the experience as rewarding and addictive. The game's charming art style and engaging gameplay loop keep players immersed, though some express frustration with the lack of in-game tutorials and the occasional overwhelming nature of the mechanics.

    • “After 140 hours of gameplay, I am still learning and finding new things to discover.”
    • “The graphics are adorable, the mechanics are challenging, and the creativity required to survive is mind-boggling.”
    • “The game mechanics are deep and complex, offering endless possibilities for experimentation and creativity.”
    • “Rarely do you make a clean build unless you have gained profound familiarity with the many hidden mechanics of this game.”
    • “The tutorial is barely that - you get a couple pointers in the beginning, and it seems like the true purpose of this game is to have you figure out incredibly, wildly complicated mechanics on your own.”
    • “The game is pretty confusing to start with; you'll probably need a tutorial for different stuff in this game, since for me, the tutorial in-game wasn't that helpful when it came to explaining the mechanics.”
  • graphics
    1,717 mentions Positive Neutral Negative

    The graphics of "Oxygen Not Included" are widely praised for their charming and whimsical art style, reminiscent of Klei's previous titles like "Don't Starve." Players appreciate the unique, hand-drawn visuals that blend cuteness with complexity, effectively masking the game's deep mechanics. While some find the cartoonish aesthetic initially off-putting, many agree that it enhances the overall experience, making the game visually engaging and enjoyable to play.

    • “The graphics are adorable, the mechanics are challenging, and the creativity required to survive is mind-boggling.”
    • “The detailed and colorful visuals bring the game's world to life in a way that is both beautiful and immersive.”
    • “The graphics are charming and whimsical, with a cartoony art style that fits the game's playful tone.”
    • “The graphics are cute and silly, the environments are very intricate, and there are hundreds of ways things can go right or wrong.”
    • “The graphics say: 'I'm a kids game', the game simulation says: 'you're too dumb to play this'.”
    • “The artwork is embarrassingly cheesy and low-effort.”
  • humor
    529 mentions Positive Neutral Negative

    The humor in "Oxygen Not Included" is a standout feature, characterized by its quirky animations, dark comedic undertones, and the often absurd situations that arise as players manage their colonies. Players frequently find themselves laughing at the antics of the "duplicants," whose misadventures—ranging from comical mishaps to catastrophic failures—add a lighthearted touch to the game's complex mechanics. While some players note that the humor can sometimes be overshadowed by the game's challenges, the overall consensus is that the blend of humor and gameplay creates an engaging and entertaining experience.

    • “The quirky and humorous characters and situations that you will encounter throughout the game will keep you entertained and engaged for hours on end.”
    • “Your dupes are hilarious, the animations are amazing, and their antics totally take away from the gruesome deaths they sometimes submit themselves to in their journey to complete that menial task you gave them.”
    • “It's a great, challenging (if you want it to be), and funny game.”
  • replayability
    485 mentions Positive Neutral Negative

    The game boasts exceptional replayability, with players highlighting its randomly generated environments, diverse challenges, and the ability to experiment with various strategies. Many reviews emphasize that the game's depth and complexity, combined with regular updates and a supportive modding community, contribute to an almost infinite replay value, making it a favorite among fans of colony management and simulation games. Overall, players find themselves continually drawn back to the game for new experiences and challenges, ensuring hours of engaging gameplay.

    • “Endless itch-scratching replayability, depth of complexity that yields countless opportunities to experiment and optimize to your heart's content, truly challenging emergent problems that are rewarding to solve and overcome, great communities for modding, discord, youtube, reddit, etc., awesome devs that have been consistently generous with new content and updates... I could go on.”
    • “The replayability of this game is incredible.”
    • “This game has endless replayability if you would enjoy an ant colony management game with the freedom to use thermodynamics and chemistry to achieve spaceflight.”
    • “After a few times trying and trying again I realized the replay value was poor... why would I restart playing?”
    • “It's hard to make a game with as much replayability that Oni has.”
    • “This is a game that lacks replayability, hence its sudden poor ratings after the previous games (FO3, FONV, FO2, etc).”
  • story
    423 mentions Positive Neutral Negative

    The story aspect of "Oxygen Not Included" is generally viewed as minimal and often secondary to the gameplay mechanics, with many players noting that it lacks a strong narrative or linear progression. While some elements of backstory can be discovered through exploration, such as logs and environmental clues, the game primarily focuses on survival and resource management rather than storytelling. Overall, players appreciate the potential for emergent narratives created through gameplay, but many express a desire for more structured story elements or missions to enhance the experience.

    • “With a deep and complex gameplay loop, an engaging story, and charming pixel art graphics, Oxygen Not Included is a game that will keep you entertained for hours on end.”
    • “The game also features an engaging story, centered around the mysterious Nisbet, a duplicant who has been sent back in time to prevent a catastrophic event from occurring.”
    • “There's a story you uncover as you expand and grow, that has you wanting to keep pushing forward to learn more.”
    • “The other issue I have with Oxygen Not Included is its story, or rather how flimsy it feels and how little there is of it.”
    • “It feels very much like an afterthought, as the whole story is conveyed through loose emails and text documents you can discover inside the game, which provide the occasional joke or minute insight into how the duplicants of the game came to be, but that seems to be it so far.”
    • “If you're looking for a story-driven game, this isn't really that, because the focus is far more on the Rube Goldbergian ways your expanding colony threatens to collapse in on itself at any moment.”
  • grinding
    370 mentions Positive Neutral Negative

    The grinding aspect of the game is frequently described as tedious and time-consuming, particularly in the late game where players must manage complex systems and micromanage tasks. While some players find enjoyment in the depth and challenge of resource management, many express frustration with the repetitive nature of tasks and the slow pace of progress, leading to a sense of burnout. Overall, the game offers a steep learning curve and intricate mechanics, but the grind can detract from the overall enjoyment for some players.

    • “You'll need a second life for grinding.”
    • “A lot of grinding.”
    • “Your lifetime of grinding.”
    • “The tedious progression and poor design around strategy resource management makes this game really dull, and also your run could be bricked and you'll have no idea and sink 20 hours into a dead run.”
    • “A lot of the late-game stuff feels a little grindy, and waiting for the dupes to complete all the tasks can be a chore because their AI is a little dumb at picking the fastest plan to complete the larger projects.”
    • “The game is not well-documented enough to justify being this tedious.”
  • music
    263 mentions Positive Neutral Negative

    The music in the game is generally praised for its charm and ability to create a relaxing atmosphere, complementing the whimsical art style and gameplay. While many players find the soundtrack enjoyable and fitting, some note that it can become repetitive over time, suggesting a need for more variety. Overall, the sound design, including sound effects, is considered top-notch, enhancing the immersive experience of managing a colony.

    • “The sound design is also top-notch, with a great soundtrack and sound effects that really immerse you in the game.”
    • “The art style, music, animations, and sound are absolutely amazing!”
    • “The music is relaxing and I often feel that I'll just work on one project and go to sleep, and I lose track because of the fun I am having.”
    • “The music is not much, but it's really fitting.”
    • “Don't expect any halo-like theme music; the current music fits the game, but it's just so you don't play in complete silence. I'd rate it maybe 3/10 as it gets very repetitive after a while.”
    • “The soundtrack/effects are just noise.”
  • optimization
    254 mentions Positive Neutral Negative

    The optimization of the game has received mixed reviews, with many players praising its engaging mechanics and potential for intricate base management, but consistently highlighting significant performance issues, particularly in the late game. While some updates have improved performance, players report that frame rates drop and lag becomes problematic as colonies grow larger, making the game less enjoyable. Overall, while the game excels in optimization opportunities, it still requires further improvements to handle larger-scale gameplay effectively.

    • “If you're into colony survival or base building, automation, or optimization games, I really couldn't recommend this title strongly enough.”
    • “Oxygen Not Included is a game where it is important to be able to work with micromanagement and optimization.”
    • “This game can be optimized to fit any gaming preference.”
    • “The game is unplayable past the mid-game because of how poorly optimized it is.”
    • “Performance drops considerably in the late game.”
    • “The biggest issue as of writing the review is extremely poor performance in late game.”
  • stability
    142 mentions Positive Neutral Negative

    The game's stability is a mixed bag, with many players reporting frequent bugs, glitches, and performance issues, particularly in late-game scenarios with larger bases. While some users experience minimal problems and find the game runs smoothly, others face significant frustrations with crashes and unresponsive mechanics. Overall, the game is seen as fun and engaging, but its stability remains a notable concern, especially for those who prefer a more polished experience.

    • “Runs great on Linux with no issues.”
    • “The game looks beautiful, and has run completely bug free over the entire time I've played.”
    • “It has a lot of potential and is as bug free as an early access game can get.”
    • “The only fault I have found in this game is that the duplicant AI can be a little buggy, but this game is still in early access.”
    • “The most recent update promised performance improvements for large saves, but they didn't materialize and now the game freezes hard if backgrounded for a few minutes.”
    • “A really great game and fun, but it freezes too much and crashes a lot; I lose my save games due to this.”
  • atmosphere
    136 mentions Positive Neutral Negative

    The atmosphere in the game is widely praised for its charming art style, immersive sound design, and engaging music, which collectively create a unique and captivating environment. Players appreciate the depth of atmospheric management mechanics, which add complexity to gameplay while maintaining a lighthearted tone. However, some critiques mention that the atmospheric sounds can be overwhelming or distracting, contrasting with the otherwise cute and whimsical aesthetic.

    • “The artwork is charming and detailed, while the sound design is immersive and atmospheric.”
    • “I love this game; the atmosphere is amazing.”
    • “The graphics and sounds give a charming atmosphere that hides a dark lore, discovered through exploration.”
    • “The attempt to create an industrial atmosphere ends up as a cheap and flimsy rattling and clanging; a droning, tense, migraine-inducing racket.”
    • “While the game has a charming art style and atmosphere, everything about it feels like the developers were trying to imitate mechanics of games like Factorio or Space Station 13 without actually understanding what makes those click.”
    • “Klei delivered yet another stress-inducing masterpiece where you spend the entire day worrying about the health and safety of dumb, ineffective squeaker toys that make music sounds in a cartoon atmosphere full of messed up situations disguised as quaint.”
  • emotional
    57 mentions Positive Neutral Negative

    The emotional aspect of the game is characterized by a blend of heartwarming moments and intense frustration, as players become deeply invested in the fates of their characters, often experiencing joy and heartbreak in equal measure. The game's charming visuals and sound design enhance the emotional roller coaster, making players feel both accomplished and overwhelmed as they navigate the challenges of colony management. Many reviewers highlight the game's ability to evoke strong feelings, from the joy of success to the sorrow of loss, creating a uniquely engaging and emotionally charged experience.

    • “Overall fun, heartwarming, frustrating, and deeply rewarding to master.”
    • “This game is an emotional roller coaster.”
    • “You get really attached to your dupes...don't get too attached, though...because if they perish, it's heartbreaking.”
    • “So elegantly driven and emotional that you cry.”
  • monetization
    12 mentions Positive Neutral Negative

    The monetization aspect of the game has drawn mixed reactions, with some players frustrated by intrusive ads and perceived shifts in target audience for profit maximization. While some appreciate the game's depth and enjoy the experience despite the monetization strategies, concerns about the influence of larger publishers like Tencent and the potential for microtransactions have raised alarms among the community. Overall, players express a desire for more ethical practices in monetization, contrasting it with the current trend of aggressive advertising and data collection.

    • “In these days of miserable sheisters, developer pond life, and microtransactions in early access games, it is a breath of fresh air to see a developer with some moral fiber.”
    • “Fake 😡 advertising!!!!”
    • “0/10 bad advertisement.”
    • “Basically they used loyal early-access hardcore gamers as guinea pigs during their development, only to change target group to mass market to maximize monetization right for the release.”
  • character development
    11 mentions Positive Neutral Negative

    The game features impressive character designs and artistic detail, contributing to an engaging visual experience. While the characters are endearing and well-designed, the depth of character development is limited, primarily manifesting through the occasional triggering of negative traits. Overall, the balance of gameplay elements and charming aesthetics enhances the enjoyment, despite a lack of significant character growth.

    • “Artistically, this is a wonderful game for the level of detail that goes into every facet, whether it is character designs, the procedural element of world building, or the tiny little animations that come with any given machine in the world - it's all pretty characteristic of all of Klei's other wondrous works.”
    • “Well balanced, with a well-developed tech tree requiring different resources and conditions, and not to mention the endearing character designs and attributes, are some of the highlights of this side-scrolling base management game.”
    • “Oxygen Not Included keeps you going and is generally entertaining with lots to do and fun character designs.”
    • “The most character development you get from them is when one of their negative traits trigger.”
    • “Between the randomness of the character designs and the challenge of managing everything, and I do mean everything, it's just great.”
    • “It's simple but very complex all at the same time, and the sounds, character design and graphics just make me miss it after I've been away for a while.”

Buy Oxygen Not Included

131h Median play time
300h Average play time
90h Main story
441h Completionist
20-420h Spent by most gamers
*Based on 310 analyzed playthroughs

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