Single-player games like Main Sequence
Below are 8 single-player Steam games similar to Main Sequence, 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 Main Sequence page.
Ranked picks
- 1
Space
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Indie and Simulation with Main Sequence.
Stranded on a hostile alien world, you must gather resources, craft tools, and automate production to survive. Build a base, fend off deadly wildlife, and uncover ancient secrets in this immersive sci-fi survival adventure. Will you conquer the planet or succumb to its perils?
- 2
Stellar Shipyard
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Strategy and Simulation with Main Sequence.
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.
- 3
Belts of Iron
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Strategy and Indie with Main Sequence.
Explore, automate, and fight in this new open world factory automation game. Build factories connected by miles of conveyor belts. Manage power and fluid networks. Explore procedurally generated worlds filled with resources to harvest and hostile creatures to defeat. Play solo or online with friends
- 4
CircuitVeil
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Strategy and Indie with Main Sequence.
CircuitVeil is a Single-player / Multiplayer isometric factory game where you boot an artificial mind. Mine the substrate, build production lines, specialize as Engineer, Defender, or Prospector, and send your factory's output through the off-world transfer beam.
- 5
Kardaviik
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Strategy and Indie with Main Sequence.
Kardaviik is a 3D factory automation game set in a voxel asteroid belt. Your mission: harness energy, ascend the Kardashev Scale, and save Earth. Conquer the expansive procedurally generated belt by harvesting resources and extracting fuel, and build your ultimate space factory!
- 6
SpaceCraft
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Indie and Simulation with Main Sequence.
The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.
- 7
MineEngineer
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Indie and Simulation with Main Sequence.
Build physics-driven ships and automated factories block by block in a 2D space survival sandbox. Mine planets and asteroids, program machines, explore a hostile universe and survive solo or with friends.
- 8
TimbrianGuard
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Strategy and Indie with Main Sequence.
Satus (Latin for beginning/sowing) is a voxel-based sand box colony management sim. Players will be tasked with overseeing their colony as they fight for survival while expanding their colony's influence, creating new outposts, and attracting new colonists in the process.