Publisher Mythwright has announced that early access for *Main Sequence*, developed by Tumbling Dumpling Studio, will begin on November 12, 2026.
Early Access with Japanese Language Support to Begin on November 12
Development began in 2023, and the Steam store page went live in late 2024. Since then, the game has undergone playtests and released a demo. It has now been revealed that Early Access for this title will begin on November 12 (international time).
Below is a brief overview of the game’s features and what the Early Access version will include.
Features of “Main Sequence”
Genre: Simulation/Strategy supporting single-player and online/local (LAN) cooperative multiplayer
Maximum multiplayer player count not announced (as of September, the developer stated that while there is no strict upper limit, performance currently decreases proportionally with the number of players)
Game Objective: Start with a single spaceship and aim to build an industrial empire spanning the galaxy
The game’s star systems are procedurally generated
Features elements of factory automation, logistics network establishment, and efficiency optimization
Spaceships and space stations are modular and can be freely designed
Establish a transport network using spaceships to move goods produced in factories via space stations
Features spaceship combat against hostile NPCs
Once a star system has been colonized, players can expand their operations by moving on to new star systems
About Early Access
Begins on November 12 (local time)
The duration (until the official release) is expected to be one to two years
From the very start, players will be able to experience the game’s core systems and a progression-driven flow where gameplay elements expand as they advance
The initial content volume is approximately 40 hours and is expected to increase with future updates
The game also features trading with NPCs
Prices are scheduled to increase upon the official launch (the Early Access price has not yet been announced)






A demo is currently available


"Main Sequence," a must-see for fans of factory automation and cooperative play, is a PC title scheduled to launch in Early Access on November 12, 2026 (local time) viaSteam.
A single-player-only demo, which—just like the planned Early Access version—already supports Japanese, is currently available.










