Status
SteamPeaks
Charts
Sales
Upcoming
Patches
Events
Calculator
Database
New on Steam
Every app, DLC and depot the minute Steam creates it
Apps
Every app on Steam, newest change first
Packages
Subs and bundles, and what each contains
Depots
Depots, manifests and install sizes
Tags
Steam's user tags and the games under them
Developers & publishers
Companies and their catalogues
Technologies
Engines, SDKs and anti-cheat found in the files
Change history
Every PICS changelist as it lands
Tools
Signals
Nineteen readings of the whole catalogue
Compare
Any games side by side
Records
All-time peaks and the days they were set
Reports
Weekly and monthly write-ups
Alerts & newsroom
Watch a game, get told when it moves
Steam status
Is Steam up, right now
Web API explorer
Try the endpoints in the browser
More
Events
Steam's own events and the sales calendar
Calculator
What a Steam account is worth, and its pile of shame
/
Sign in
/
Main Sequence Playtest
›
Events
›
Playtest Release 7
Game update
Playtest Release 7
Main Sequence Playtest
· published
17 months ago
· build
18139588
All events
Players around this date
Read on Steam
Features:
Starting Station now includes a drone bay, which can build new station modules and automatically retrieve ore from nearby miners.
Added a sector and solar system map.
Added autosaving.
Drones now show up as HUD markers when not docked.
Balance:
Increased the number of resource nodes.
Changed the building recipe for the T0 Core, and updated the starting items to match.
Reduced the crafting cost of Lightweight Frames and Hull Plates
Reduced the building cost of the T1 Factory and Shipyard.
Reduced the research cost of Thrusters and T1 Shipyard.
Bug Fixes:
Fixed input/output ports on Enrichment Chamber not being configured properly.
Fixed a bug where the volume settings did not load properly.
Added collider to the station dock doors. Ships will now not undock if a player is in the airlock.
Fixed the spectator camera
Ships now collide with other ships.
Fixed the ship upgrade modules not saving.
Fixed the material for Nickel Plates on conveyor belts.
More from Main Sequence Playtest
Other announcements
All events
Community
22 May 2026
Playtest Closing on May 27th
Greetings 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 Playtest
Game update
22 Dec 2025
Playtest Release 18 Patch 1
Bug 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 event
21 Dec 2025
Playtest Release 18
This 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…