Publisher Mythwright and developer Tumbling Dumpling Studio have set Main Sequence for early access on November 12 (November 13 in Japan), planned for PC via Steam with an Epic Games Store version planned but undated. It follows a demo that supports Japanese, runs on Steam, and covers single-player and online co-op.
Main Sequence is an upcoming space automation sim from developer Tumbling Dumpling Studio and publisher Mythwright. The game starts with one mining ship and grows into a galaxy-scale production network. It blends automation, spaceship design, and combat, and divides its play between single-player and online co-op, with co-op planned.
The first public step was a demo. It supports Japanese and runs on Steam. The demo has registered a Very Positive rating on Steam and drawn more than 100,000 wishlist registrations.
The next step is early access. Mythwright said on October 2 that the release is set for November 12, which is November 13 in Japan. It is planned for PC via Steam, and an Epic Games Store version is planned but undated. Both dates in the announcement refer to the early access launch.
Synthesized by Yomimono from the cited Yomimono stories below, each itself
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Facts
- Release
- game · November 12, 2026 · global · 2026-10-05
- Release
- game · November 13, 2026 · Japan · 2026-10-05
- Release
- game · 2026-05-29 · global · 2026-05-29
- Announced
- demo has drawn a Very Positive Steam rating · 2026-10-05
- Announced
- more than 100,000 wishlist registrations · 2026-10-05
- Announced
- early access planned for 2026 · 2026-05-29
Connections
Structured graph also available as JSON at /public/entities/main-sequence.
CC BY 4.0.
Oct 5
Publisher Mythwright said on October 2 that Main Sequence, developed by Tumbling Dumpling Studio, will enter early access on November 12, which is November 13 in Japan. It is planned for PC via Steam, with an Epic Games Store version planned but undated. The space automation sim starts with one mining ship and grows into a galaxy-scale production network, with online co-op planned.
May 29
Publisher Mythwright and developer Tumbling Dumpling Studio released a demo for the space factory automation game Main Sequence. The demo supports Japanese and is available on Steam. The single-player and co-op multiplayer title, which blends automation, spaceship design, and combat, is planned for early access within 2026.