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Main Sequence Playtest›Events›Playtest Release 15
In-game event

Playtest Release 15

Main Sequence Playtest · published 11 months ago · build 20257324

All eventsPlayers around this dateRead on Steam

Playtest Release 15 is now available on the Experimental branch.

IMPORTANT: Backup your save files before switching branches by going to the Main Menu -> Load Game -> Open Save Directory and copying the contents somewhere else.

Future content updates to the playtest will happen on the experimental branch. If you'd like to be the first to test out these new features, follow the instructions below.

Switching Branches:

  1. Go the main Steam page for the playtest and click the gear icon in the top-right.

  2. Choose "Properties" from the drop down menu, and find the "Betas" tab

  3. Change the Beta Participation to "Experimental"

Features:

  • Added Mk.2 and Mk. 3 versions of Conveyor Belts, Underground Belts and Splitter.

  • Added Large Containers.

  • Added Item Elevators.

  • Added Industrial Docks.

  • Added Capacitor item.

  • Added Servo Plate item.

  • Item filters can now be cleared.

  • Added Wait for Time order to the Autopilot.

  • Reworked Dock Select UI.

Balance:

  • Conveyor Belts Mk. 1 now only require 1 Titanium Plate instead of 2.

  • All basic machines now require Lightweight Frames to build.

  • Refinery Build Cost Changed: 3 Magnetic Coils >> 5.

  • Assemblers and Science Labs now require Capacitors instead of Magnetic Coils.

  • Servomotors now require Lightweight Frames instead of Titanium Plates.

  • Advanced Plates recipe reworked to require Servo Plates.

  • Advanced Plates Research Cost 100 >> 250.

  • Changed the amount of Titanium Ore to be mined in the tutorial from 50 >> 100.

  • Renamed “Ladder” research to “Ship Ladder.”

  • Solar Panels research is now locked behind Basic Circuits.

  • New “Vertical” category added to the Designer.

  • Warp Fuel Research Cost 200 >> 400.

  • Warp Fuel now requires 1x Advanced Plate and 10x Hydrogen Fuel.

  • Underground Belts Build Cost 4 Nickel Plates >> 8.

  • Underground Belts Mk. 1 now span 8 tiles (6 tile gap).

  • Solar Panels now require Capacitors instead of Nickel Plates.

  • Large Thrusters and Warp Drive now require Capacitors instead of Hull Plates.

Bug Fixes:

  • Fixed overflow item crates not being spawned when disassembling.

  • Fixed machines continuing to work and output items after being disassembled.

  • Machines and conveyor belts can now be built by looking at the side of an existing machine.

  • The player no longer blocks conveyor belts from being built.

  • Fixed disabled ports not being saved.

  • Fixed paint colours not being applied to Station Corners.

  • Remove Cobalt items from the filter until they can be properly implemented.

  • Fixed bug with machine port metallic visuals.

  • Changed the Reinforced Glass icon to make the amount text more legible.

More from Main Sequence Playtest

Other announcements

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Community22 May 2026Playtest Closing on May 27thGreetings Commanders! After many months of working behind the scenes, it is almost time for the next stage of development for Main Sequence. This means that the playtest will be closing on May 27th in preparation for the upcoming demo launch. Thank you for participating in the playtest! The amazing community that has grown around the game is something that I didn’t expect when I started develop…Main Sequence PlaytestGame update22 Dec 2025Playtest Release 18 Patch 1Bug Fixes: · Fixed an issue where loading a game after loading the Arena gamemode would always bring up the arena menu. · Fixed Titanium Plates being listed as a harvestable resource instead of Titanium Ore in the map view. · Ships will no longer try to go to disassembled docks. · Fixed an issue where the player’s rotation would be tilted after boarding a station.In-game event21 Dec 2025Playtest Release 18This updates completely reworks the generation of the solar system, adding a whole new progression path up to producing Quantum Science that will require you to bring resources together from different sectors of the solar system. There are now 3 distinct biomes with each with different resources and abundances, which you can view in the updated solar system map. The Relic enemies have also been…