Single-player games like Space for Sale
Below are 9 single-player Steam games similar to Space for Sale, 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 Space for Sale page.
Ranked picks
- 1
Stellar Shipyard
Single-player alternative to Space for Sale — playable solo, no multiplayer required. Shares Strategy and Simulation with Space for Sale.
Stellar Shipyard is a space colony sandbox where you design modular ships and stations, and automate resource production using drones and workers. Let the automated systems fly even the most improvised designs. Face rival factions and threats solo, or alongside friends as allies or rivals.
- 2
Ratopia
Single-player alternative to Space for Sale — playable solo, no multiplayer required. Shares Strategy and Simulation with Space for Sale.
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.
- 3
Astro Colony
Single-player alternative to Space for Sale — playable solo, no multiplayer required. Shares Strategy with Space for Sale.
Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.
- 4
SPORE™
Single-player alternative to Space for Sale — playable solo, no multiplayer required. Shares Strategy and Simulation with Space for Sale.
Be the architect of your own universe with Spore, an exciting single-player adventure. From Single Cell to Galactic God, evolve your creature in a universe of your own creations.
- 5
Castle Story
Single-player alternative to Space for Sale — playable solo, no multiplayer required. Shares Strategy and Simulation with Space for Sale.
Castle Story is a creative voxel-based strategy game in which you can build castles one brick at a time using an army of little creatures called Bricktrons. Design and build your own castles, expand your territory in a vast landscape and defend your Bricktrons against onslaughts of hostile creatures.
- 6
Stronghold: Warlords
Single-player alternative to Space for Sale — playable solo, no multiplayer required. Shares Strategy and Simulation with Space for Sale.
Besiege Great Khans, Imperial warlords and Shōgun commanders in Stronghold: Warlords, the latest 'castle sim' from Firefly Studios. Command AI warlords across the battlefield as you build a castle economy and new gunpowder-fuelled siege engines!
- 7
Surviving Mars
Single-player alternative to Space for Sale — playable solo, no multiplayer required. Shares Strategy and Simulation with Space for Sale.
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.
- 8
First Feudal
Single-player alternative to Space for Sale — playable solo, no multiplayer required. Shares Strategy and Simulation with Space for Sale.
Become a real medieval feudal lord: start with a small village and build it up into an enormous impenetrable castle. You will have to repel enemy raids: hide behind thick walls, lure your enemies into strategically placed traps, and even lead your loyal peasants into battle.
- 9
Little Big Workshop
Single-player alternative to Space for Sale — playable solo, no multiplayer required. Shares Strategy and Simulation with Space for Sale.
Manage your workers, stations, machines and create awesome stuff as your little big workshop grows into your dream factory!