Single-player games like Solargene
Below are 16 single-player Steam games similar to Solargene, 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 Solargene page.
Ranked picks
- 1
Workers & Resources: Soviet Republic
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Simulation with Solargene.
Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.
- 2
Space Haven
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Indie with Solargene.
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.
- 3
Captain of Industry
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Indie with Solargene.
Build an industrial empire on a remote island. Mine resources, reshape terrain with excavators, grow food, construct factories, lay train tracks, and trade with the outside world. Research 100+ technologies to advance from basic metal smelting all the way to nuclear power and space flight.
- 4
Pioneers of Pagonia
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Simulation with Solargene.
Rebuild hope in a world that was lost in the fog. Lead your Pioneers across the isles of Pagonia, unite scattered tribes, raise thriving communities and discover the history of your people as you reclaim your world in the new story campaign.
- 5
InfraSpace
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Indie with Solargene.
Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain.
- 6
Driftland: The Magic Revival
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Indie with Solargene.
After a devastating war between ancient mages, a powerful spell is all that holds together the shattered planet of Driftland. Take on the role of a powerful mage capable of moving and connecting floating lands, develop a mighty empire, and restore Driftland to its former glory!
- 7
Anno 2205™
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Simulation with Solargene.
In Anno 2205™, you join humankind‘s next step into the future with the promise to build a better tomorrow. You conquer Earth, establishing rich, bustling cities and grand industrial complexes, but to secure the prosperity of your people, you must travel into space.
- 8
Surviving Mars: Relaunched
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Simulation with Solargene.
The award-winning sci-fi city builder is back - remastered, expanded and even more stunning. Colonize Mars and survive the process, from exploration and infrastructure to welcoming colonists and achieving long-term stability. Are you ready? Mars is waiting.
- 9
Surviving Mars
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Simulation with Solargene.
There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.
- 10
Stellaris
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Simulation with Solargene.
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
- 11
RimWorld
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Indie with Solargene.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
- 12
Terra Invicta
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Simulation with Solargene.
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
- 13
Space Engineers
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Indie with Solargene.
Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.
- 14
Factorio
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Indie with Solargene.
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.
- 15
Kenshi
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Indie with Solargene.
A free-roaming squad based RPG. Focusing on open-ended sandbox gameplay features rather than a linear story. Be a trader, a thief, a rebel, a warlord, an adventurer, a farmer, a slave, or just food for the cannibals. Train your men up from puny victims to master warriors.
- 16
Anno 1800
Single-player alternative to Solargene — playable solo, no multiplayer required. Shares Strategy and Simulation with Solargene.
Anno 1800™ – Lead the Industrial Revolution! Welcome to the dawn of the Industrial Age. The path you choose will define your world. Are you an innovator or an exploiter? A conqueror or a liberator? How the world remembers your name is up to you.