Uncovering the Best Oxygen Not Included Alternative for Colony Sim Enthusiasts
Oxygen Not Included is a captivating space-colony simulation game where you manage colonists, dig out a subterranean asteroid base, and strive to keep your denizens alive and happy with ample water, warmth, food, and, of course, oxygen. While incredibly deep and rewarding, you might be looking for a fresh challenge, a different aesthetic, or simply another take on the colony management genre. If you're searching for an exciting Oxygen Not Included alternative, you've come to the right place.
Top Oxygen Not Included Alternatives
Whether you crave more detailed resource management, a focus on combat, or a unique setting, these games offer compelling experiences for fans of colony simulation and survival. Dive in and discover your next obsession!

Dwarf Fortress
Dwarf Fortress is a legendary single-player fantasy simulator that offers an unparalleled level of depth and complexity in colony management, making it an excellent Oxygen Not Included alternative. Available for Free on Mac, Windows, and Linux, it features intricate Battle simulation, Infinite hierarchical depth, Squad-based gameplay, Survival elements, Terraforming, and Turn-Based mechanics. If you enjoyed the detailed systems of ONI, Dwarf Fortress will undoubtedly keep you engrossed for countless hours.

RimWorld
RimWorld is a highly acclaimed colony simulation game inspired by the space western vibe, following survivors building a colony on a frontier world. This commercial game, available on Mac, Windows, Linux, and Steam, stands out as a strong Oxygen Not Included alternative due to its deep Base building, Moddable content, Endless gameplay, Open World exploration, and Strategy planning. Like ONI, it focuses on managing individuals with unique personalities and needs within a challenging environment.

Planetbase
Planetbase challenges players to guide space settlers in establishing an outpost on a remote planet, focusing on growing food, collecting energy, mining resources, and manufacturing. Available commercially on Windows and Steam, it offers core Gaming and Survival features that will appeal to fans of Oxygen Not Included's resource management and base-building aspects, albeit with a slightly different visual style and gameplay pace.

Spacebase DF-9
In Spacebase DF-9, you construct a home among the stars for diverse humans and aliens. This commercial title, available on Mac, Windows, Linux, and Steam, is a viable Oxygen Not Included alternative for its focus on base management and character interactions. It shares the Gaming, Single player, Squad based, and Turn Based features, offering a similar sense of guiding a community in a challenging sci-fi setting.

Frostpunk
Frostpunk puts you in charge of the last city on Earth, requiring you to manage citizens and infrastructure amidst a frozen apocalypse. This commercial game available on Windows, Steam, GOG.com, Playstation, and Xbox offers a unique take on the survival genre with its Atmospheric setting and intense Survival mechanics. If you appreciate the harsh environmental challenges and moral dilemmas of Oxygen Not Included, Frostpunk provides a darker, equally compelling experience.

Wiggles/Diggles/Gnomy
Diggles: The Myth Of Fenris is a classic side-scrolling strategy game based on a 3D-engine, released commercially on Windows. While older, it serves as an interesting Oxygen Not Included alternative for those who enjoy subterranean digging and managing a colony of unique creatures. Its RTS (Real-Time Strategy) elements and Multiple languages support offer a different flavor of base management.

Space Haven
Space Haven is a spaceship colony sim where you manage resources and crew members to build and maintain your spaceship for exploration. This commercial game on Mac, Windows, and Linux offers similar Gaming and Simulation elements to Oxygen Not Included, with an Isometric view and charming Pixel graphics. If the space setting and intricate system management of ONI appeal to you, Space Haven provides a fantastic experience of building and exploring your own vessel.
Each of these games offers a unique twist on the colony simulation genre, providing deep gameplay and endless hours of strategic fun. We encourage you to explore the alternatives listed above to find the perfect fit for your next gaming adventure, based on your preferred platform, features, and level of challenge.