Single-player games like Icaria
Below are 12 single-player Steam games similar to Icaria, 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 Icaria page.
Ranked picks
- 1
Microtopia
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation with Icaria.
Become the hive mind of a robot ant colony in Microtopia! Use pheromone trails to create, automate and optimize supply chains for your ants to follow. Collect resources, produce goods, feed your queen, grow your colony and fly out to expand the species!
- 2
Autonauts
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation with Icaria.
In Autonauts you must build, create, and automate. Start by establishing a colony, crafting bots and teaching them via Scratch-style programming to build an ever evolving autonomous paradise of agriculture, industry and enlightenment.
- 3
FOUNDRY
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation and Early Access with Icaria.
Build a sophisticated robot factory optimized to perfection in an infinite voxel world. Mine and harvest resources, automate your production lines and manage complex systems while researching your way to become the galaxy’s leading robotics megacorp.
- 4
Evospace
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation and Early Access with Icaria.
Contribute to the colonization of the universe. Get and process resources, develop your technologies. Achieve complete automation and build a portal to include another planet in the chain of worlds.
- 5
Factory Town
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation with Icaria.
Build, automate, and optimize a giant factory on 3D terrain using conveyor belts, trains, chutes, pipes, and airships. Sell your goods to nearby villages to expand their borders, increase happiness, and unlock even better technology!
- 6
Dawn Apart
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation and Early Access with Icaria.
Dawn Apart is a space colony and factory sim with fully destructible environments. Mine, automate, and defend your settlers, or lead a rebellion against the very corporation pulling your strings…
- 7
Plan B: Terraform
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation with Icaria.
Terraform a lifeless rock into a lush and habitable world. Build trucks, trains, and sprawling factories on an enormous hexagonal planet. Grow its population to millions. Enjoy a dynamic simulation of atmosphere, temperature, water, and forests.
- 8
Timberborn
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation with Icaria.
Humans are long gone. In a world struck by droughts and toxic waste, will your lumberpunk beavers do any better? A sandbox city-building game featuring ingenious animals, vertical architecture, water physics, and terraforming. Contains high amounts of wood.
- 9
Outworld Station
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation and Early Access with Icaria.
Take the helm as a new Station Commander and exploit an alien star system in this stunning space-station factory automation game. Amass resources and construct starships using increasingly advanced manufacturing and expand your station in a hostile universe.
- 10
Factorio
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation with Icaria.
Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
- 11
Desynced
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation with Icaria.
Desynced is a sci-fi strategy game with fully customizable units and behaviors. Gather, build, research, and explore the unknown. Alone or with friends, unveil the mystery of an AI on the edge of self-awareness and uncover the hidden truth in this blend of strategy, automation, and exploration.
- 12
Craftomation 101: Programming & Craft
Single-player alternative to Icaria — playable solo, no multiplayer required. Shares Simulation with Icaria.
Program a crew of tiny robots to turn a frozen planet into a living world. Connect visual code blocks, automate crafting, and build a workforce that fuels itself. Keep the heat flowing, refine your machines, and watch your ideas come to life.