Single-player games like Startopia
Below are 14 single-player Steam games similar to Startopia, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Startopia page.
Ranked picks
- 1
Spacebase Startopia
Single-player alternative to Startopia — playable solo, no multiplayer required. Shares Simulation with Startopia.
Spacebase Startopia captivates with its original mixture of economic simulation and empire building strategy paired with classic RTS skirmishes and a good dose of humor.
- 2
Evil Genius
Single-player alternative to Startopia — playable solo, no multiplayer required.
Everybody wants to rule the world! Achieve global power with EVIL GENIUS, the one and only complete world domination simulator. All the everyday tasks of the deliciously wicked mastermind are available to experience and master from building your ultra-secret base to developing spectacular super-weapons to carry out your nefarious master...
- 3
Aven Colony
Single-player alternative to Startopia — playable solo, no multiplayer required. Shares Simulation with Startopia.
Build a new home for humanity in Aven Colony. Discover Aven Prime - an alien planet of deserts, tundras, and wetlands light years from earth. Build your colonies into massive, sprawling cities whilst dealing with the challenges faced when settling on a new world.
- 4
Clanfolk
Single-player alternative to Startopia — playable solo, no multiplayer required. Shares Simulation with Startopia.
Clanfolk is a colony sim set in the Scottish Highlands. Harness your environment to survive - fish, gather, hunt, and farm as you prepare for the winter. Build an inn, trade with other clans, have children and marry them off - live life and prosper across the generations.
- 5
Against the Storm
Single-player alternative to Startopia — playable solo, no multiplayer required. Shares Simulation with Startopia.
A dark fantasy city builder where you must rebuild civilization in the face of apocalyptic rains. As the Queen’s Viceroy, lead humans, beavers, lizards, foxes, and harpies to reclaim the wilderness and secure a future for civilization's last survivors.
- 6
Space Haven
Single-player alternative to Startopia — playable solo, no multiplayer required. Shares Simulation with Startopia.
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
- 7
Judgment: Apocalypse Survival Simulation
Single-player alternative to Startopia — playable solo, no multiplayer required. Shares Simulation with Startopia.
Build, scavenge, craft, and perform occult rituals to survive in a demon-infested, post-apocalyptic colony simulation. Will you survive Judgment day?
- 8
Planetbase
Single-player alternative to Startopia — playable solo, no multiplayer required. Shares Simulation with Startopia.
Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.
- 9
Half-Life
Single-player alternative to Startopia — playable solo, no multiplayer required.
Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
- 10
SPORE™
Single-player alternative to Startopia — playable solo, no multiplayer required. Shares Simulation with Startopia.
Be the architect of your own universe with Spore, an exciting single-player adventure. From Single Cell to Galactic God, evolve your creature in a universe of your own creations.
- 11
SimCity™ 4 Deluxe Edition
Single-player alternative to Startopia — playable solo, no multiplayer required. Shares Simulation with Startopia.
SimCity 4 Deluxe Edition includes the bestselling SimCity 4 and the all-new SimCity 4 Rush Hour Expansion Pack. Create the most massive region of cities ever, with a farming town, bedroom community, high-tech commercial center, and industrial backbone.
- 12
IXION
Single-player alternative to Startopia — playable solo, no multiplayer required. Shares Simulation with Startopia.
IXION is an unrelenting, city-building odyssey across the stars. As Administrator of the Tiqqun, DOLOS’ prototype space station, you are tasked with balancing preservation and exploration as you manage infrastructure, resources and crew. Can you keep the flame of humanity alight in the cold dark?
- 13
Croak Crusader: Spawn of the Spore Spectre
Single-player alternative to Startopia — playable solo, no multiplayer required.
Embark on an odyssey into the unknown! Behold the tale of Toadman, an enigmatic being born from alien tech and the mysteries of Radiant Verde. Witness his perilous quest through treacherous jungles to confront Captain Croak in an epic showdown! Welcome to "Spawn of the Spore Spectre"!
- 14
Urban Chaos
Single-player alternative to Startopia — playable solo, no multiplayer required.
Urban Chaos throws you into the heart of a modern urban jungle at the turn of the millenium. To succeed you'll need a lethal combination of stealth, physical agility and martial art skills as you interact with the city around you.