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Last checked 1h ago 13 stores · next check in 163 min 3,323 offers recorded since 19 Sep 2026 · Browse archive →
Main Sequence Demo

What we tracked

Listed on Steam. Picked up from Steam, then checked against the store.

What the developer says

Freely explore and build in your starting star system in this singleplayer demo of Main Sequence. Progress through unlocking the first two tiers of technology, culminating in the Slipstream Drive that will enable you to travel and explore the full extent of the star system. Upgrade your ship, battle enemies, and work to build the start of your automation empire. This is what will be waiting in the full game...

Excerpt from the Steam store page. Full description there.

Genres and features

IndieSimulationStrategySingle-player

Common questions

Is it really free?

Yes. Main Sequence Demo is free right now on Steam, with nothing to pay.

Is this the full game?

No. A demo is a portion of Main Sequence Demo — usually the opening section — published so you can try it. It is free permanently, but it is not the complete game.

Where do I claim it?

On the official Steam page. We link straight there — we never host game files or act as a middleman.

Giveaway history

1 from our archive
Previous times Main Sequence Demo was given away
EndedStoreRan for
— Steam —

Recorded as each giveaway ran, not reconstructed afterwards. Publishers repeat themselves, so a title that has been free before is a reasonable bet to return.

Also ending soon

More demos on Steam