Main Sequence
- Steam pricePrice
Unknown until release
- Players
- 2 - 4
- Release
- November 12, 2026Early accessUpcoming
- Modes
- Platforms
How co-op works
Online and LAN co-op lets teams share a persistent universe where players design custom ships, build space stations, and automate resource chains, coordinating factory layouts and dividing industrial tasks across star systems.
About this game
Main Sequence is a first-person space-sim factory builder that places you inside an expanding industrial universe. Starting with a single ship, you design custom spacecraft, construct sprawling space stations, and automate complex production chains as you build an interstellar empire. The game combines shipbuilding with factory optimization in a persistent galaxy where every station and route becomes part of a growing network.
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You walk through your stations in first person, laying out conveyor paths, configuring resource processors, and tweaking automation logic. Ship design integrates function and form, letting you assemble vessels for mining, transport, or construction. Automation handles repetitive tasks, freeing you to expand production, scout new systems, or refine industrial blueprints.
Progression scales from modest beginnings to empire-wide operations, with each new station and ship adding capability and reach. Cooperative play supports online and LAN, letting teams coordinate factory layouts and divide labor as they industrialize entire sectors. Save-anytime flexibility and self-paced structure make it easy to plan long sessions or drop in for focused building sprints.
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Frequently Asked Questions
How does co-op work in Main Sequence?
Main Sequence supports both online and LAN co-op in a shared persistent galaxy. You and your teammates can work together designing ships, building space stations, and setting up automated production chains. Teams can divide tasks-one player might focus on mining operations while another optimizes factory layouts-and all progress is saved to the shared universe.
Can I play at my own pace or is it time-pressured?
Main Sequence is designed to be played at your own pace with no timed input required. You can save anytime, so whether you want long building sessions or shorter focused sprints to refine a factory layout or ship design, the game adapts to your schedule without pressure.
Do I need to be good at communication and coordination to play co-op?
Yes, Main Sequence emphasizes communication-heavy teamwork. Coordinating factory layouts, dividing labor across multiple stations, and planning shared automation systems works best when teams talk through their strategies and synchronize their industrial expansion efforts.
What do you actually do in the game?
You walk through your space stations in first person, laying out conveyor systems, configuring resource processors, and automating production chains. You also design custom ships for mining, transport, and construction, then expand across star systems to build an interstellar industrial network. Progression starts small with a single ship and scales up to managing empire-wide operations.