How many people are playing Main Sequence Playtest right now?

Main Sequence Playtest has 343 players on Steam right now, with a 24-hour peak of 343 and an all-time peak of 343 on 17 Sep 2026.

What is the all-time peak player count of Main Sequence Playtest?

343 concurrent players on 17 Sep 2026.

When was Main Sequence Playtest released on Steam?

Main Sequence Playtest was released on Steam on 17 Sep 2026.

Status

SteamPeaks

Main Sequence Playtest

BetaApp ID 3,454,240Released 17 Sep 2026

Playing now

343

Launch peak so far

343

18:00 UTC · 17 Sep 2026steampeaks.com

—Engine —

View on SteamSteamCompare

App ID3,454,240

Release date17 Sep 2026

Engine—

Install size2.74 GB

TypeBeta

Last update17 Sep 2026

Steam Deck—

DLC0

Developer—

Changenumber38,958,466

Price—

Packages0

Publisher—

Systems—

Followers—

Depots1

Compare this game

Main Sequence Playtest

Released 17 Sep 2026·App 3454240

Steam user reviews

Not enough reviews yet

0 so far · summary at 10

SteamPeaks Rating

Not enough reviews yet

Rated from 10 reviews

How it works

Playing now

343

Sampling since 10:30 UTC

100%of peak

Launch peak so far

343

17:59 UTC

Launch

Unlocked 17 Sep 2026, 17:00 UTC

1 hour ago · tracking at minute resolution

Regional unlocks · UTC

Global unlock

Live standing

Launch peak 343 so far

Hour 1 of the launch window

30 announcements · from Main Sequence Playtest’s Steam news feed

All gamesRead every half hour while active

Everything Updates26 In-game events3 Community1

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…

Main Sequence Playtest News · SteamPeaks