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
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
- 2
Alchemy Factory
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Strategy and Indie with Main Sequence.
Craft your workshop as an alchemist! Harness arcane devices to automate crafting. Sell alchemical goods, fulfill commissions, and rise to become a renowned alchemy magnate. Multiplayer Supported! Invite master designers to (ahem) contribute their expertise—let them optimize your production lines!
- 3
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.
- 4
FOUNDRY
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Strategy and Indie with Main Sequence.
Build a sophisticated robot factory optimized to perfection in an infinite voxel world. Mine and harvest resources, automate your production lines and manage complex systems while researching your way to become the galaxy’s leading robotics megacorp.
- 5
Skyformer
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Strategy and Indie with Main Sequence.
Create an automated system that terraforms a planet with an army of drones. Craft and build bases, set up a weather monitoring system, prepare to survive different types of storms, and take control of the climate and biomes!
- 6
Factorio
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Strategy and Indie with Main Sequence.
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.
- 7
Satisfactory
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Strategy and Indie with Main Sequence.
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!
- 8
Interstellar Rift
Single-player alternative to Main Sequence — playable solo, no multiplayer required. Shares Indie and Simulation with Main Sequence.
Interstellar Rift is an open world starship simulator with an emphasis on ship construction and multi-player interaction. Survive in a hostile galaxy with your own custom designed and constructed starship. Invite other players to join your crew or fight them across the galaxy!