Single-player games like Trappist
Below are 12 single-player Steam games similar to Trappist, 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 Trappist page.
Ranked picks
- 1
Plan B: Terraform
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Strategy and Indie with Trappist.
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.
- 2
Microtopia
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Strategy and Simulation with Trappist.
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!
- 3
Captain of Industry
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Strategy and Indie with Trappist.
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
Outworld Station
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Strategy and Indie with Trappist.
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.
- 5
Corsair Cove
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Strategy and Simulation with Trappist.
Build a sprawling pirate haven, raise a fleet to explore the high seas, and take on the Crown to keep the Age of Piracy alive! From ale to flintlock pistols, and from scallywags to swashbucklers, you’ll need to manage complex production chains and govern a rowdy crew to reign supreme over the seas!
- 6
Aven Colony
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Strategy and Indie with Trappist.
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.
- 7
Terraformental
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Indie with Trappist.
Waking up alone in a derelict terraforming facility on an unknown (and distinctly not terraformed) planet, it's up to you to find a way to survive, learn what happened to the people who lived here and why you were abandoned in this narrative-driven incremental game.
- 8
AETHUS
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Strategy and Indie with Trappist.
Explore a vast underground world to mine and craft hundreds of items while building up your modular Outpost on the surface, to prospect for gems, refine resources and farm hydroponic crops in this top-down sci-fi survival-crafter where the story always provides a reason to dig deeper.
- 9
Frostpunk
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Strategy and Simulation with Trappist.
Frostpunk is the first society survival game. As the ruler of the last city on Earth, it is your duty to manage both its citizens and infrastructure. What decisions will you make to ensure your society's survival? What will you do when pushed to breaking point? Who will you become in the process?
- 10
Factorio
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Strategy and Indie with Trappist.
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
IXION
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Strategy and Indie with Trappist.
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?
- 12
Alien
Single-player alternative to Trappist — playable solo, no multiplayer required. Shares Indie and Simulation with Trappist.
Alien is a visual novel exclusively for adults! This story is about a guy who has been dreaming of having sex with an alien woman for a very long time. At some point, this dream comes true and the guy finally fucked an alien woman!