Single-player games like Nova Origin
Below are 8 single-player Steam games similar to Nova Origin, 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 Nova Origin page.
Ranked picks
- 1

RimWorld
Single-player alternative to Nova Origin — playable solo, no multiplayer required. Shares Strategy and Indie with Nova Origin.
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.
- 2

Captain of Industry
Single-player alternative to Nova Origin — playable solo, no multiplayer required. Shares Strategy and Indie with Nova Origin.
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.
- 3

Surviving Mars: Relaunched
Single-player alternative to Nova Origin — playable solo, no multiplayer required. Shares Strategy and Simulation with Nova Origin.
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.
- 4

Timberborn
Single-player alternative to Nova Origin — playable solo, no multiplayer required. Shares Strategy and Indie with Nova Origin.
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.
- 5

Pioneers of Pagonia
Single-player alternative to Nova Origin — playable solo, no multiplayer required. Shares Strategy and Simulation with Nova Origin.
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.
- 6

Solargene
Single-player alternative to Nova Origin — playable solo, no multiplayer required. Shares Strategy and Indie with Nova Origin.
Take Command of a Space Corporation in the Sci-Fi Simulator Solargene! Manage personnel, design and develop colonies and orbital stations across the solar system! Mine resources, establish logistics, research cutting-edge technologies, trade, and complete missions
- 7

Whiskerwood
Single-player alternative to Nova Origin — playable solo, no multiplayer required. Shares Strategy and Simulation with Nova Origin.
Establish a home for your industrious mice under the oppressive paw of your cat overlords in this city builder featuring complex simulations, intricate production chains, and the age-old rivalry between cat and mouse.
- 8

Blacksmith Master
Single-player alternative to Nova Origin — playable solo, no multiplayer required. Shares Strategy and Simulation with Nova Origin.
Manage your own medieval smithy in Blacksmith Master and supervise the entire process from mining ores and gems to designing and selling finished products. Forge everything from weapons and armor to tools and cooking utensils to fund your craft and become the Blacksmith Master.