Single-player games like Adaptory
Below are 12 single-player Steam games similar to Adaptory, 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 Adaptory page.
Ranked picks
- 1
Red Dust Colony
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Simulation with Adaptory.
The spirit of the space race lives on in this Mars based colony sim. Mine, craft and research in order to build up your initial lander into a self sustaining colony. Keep oxygen levels high and CO₂ levels low. Discover and grow a variety of plants to balance out colonist nutrition.
- 2
Captain of Industry
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Indie and Simulation with Adaptory.
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
Whiskerwood
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Simulation and Early Access with Adaptory.
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.
- 4
RimWorld
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Indie and Simulation with Adaptory.
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.
- 5
Steel Artery: Train City Builder
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Indie and Simulation with Adaptory.
Build a living city on rails in this steampunk fantasy train-city builder. Manage multiracial colonies with thousands of autonomous citizens, balance their needs, manage the economy, and create logistics as you explore distant regions to ensure the prosperity of your Empire.
- 6
Plan B: Terraform
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Indie and Simulation with Adaptory.
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.
- 7
Nova Roma
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Simulation and Early Access with Adaptory.
The glory of Rome is at your fingertips in this city-building game where you must appease the gods, enact laws, and develop complex supply chains to meet the needs of your citizens.
- 8
Norland
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Simulation and Early Access with Adaptory.
Lead your noble family in this medieval colony sim, facing off against class conflict, religious struggle, and political treachery. Tend to your people’s needs, uncover the lost knowledge of a fallen empire, and engage in nefarious plots against your enemies.
- 9
Oxygen Not Included
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Indie and Simulation with Adaptory.
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
- 10
Ratopia
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Indie and Simulation with Adaptory.
Ratopia is a new game that has combined elements of both strategic survival and city building. With plenty of content available, and more planned, enjoy a vast world to adventure and populate with citizens! Build your own economical system to sustain your ideal city of Ratopia.
- 11
The Sims™ 4
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Simulation with Adaptory.
Play with life and discover the possibilities. Unleash your imagination and create a world of Sims that’s wholly unique. Explore and customize every detail from Sims to homes–and much more.
- 12
The Sims™ Legacy Collection
Single-player alternative to Adaptory — playable solo, no multiplayer required. Shares Simulation with Adaptory.
The original game you know and love. For Windows 10/11. Create a neighborhood of Sims and guide their lives through careers and romance. Or create chaos with open-ended gameplay that lets you shape their destinies.