How many people are playing M.A.S.S. Builder right now?

M.A.S.S. Builder has 6 players on Steam right now, with a 24-hour peak of 14 and an all-time peak of 480 on Jul 2020.

What is the all-time peak player count of M.A.S.S. Builder?

480 concurrent players on Jul 2020.

When was M.A.S.S. Builder released on Steam?

M.A.S.S. Builder was released on Steam on 15 Sep 2025.

Status

SteamPeaks

M.A.S.S. Builder

GameApp ID 956,680by Vermillion DigitalReleased 15 Sep 2025

WindowsEngine —

View on SteamSteamCompare

App ID956,680

Release date15 Sep 2025

Engine—

Install size10.1 GB

TypeGame

Last update21 Sep 2025

Steam Deck—

DLC0

DeveloperVermillion Digital

Changenumber38,342,058

Price—

Packages0

PublisherSekai Project

SystemsWindows

Followers—

Depots1

Compare this game

M.A.S.S. Builder

Vermillion Digital·Sekai Project
Released 15 Sep 2025·App 956680

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

−3 vs. yesterday

1.3%of peak

All-time peak

480

Jul 2020

Full details

Everything about M.A.S.S. Builder

Export CSVUpdated 7 Sep 2026, 17:08 UTC

Identity

Name

M.A.S.S. Builder

App ID

956,680

Type

Game

Developer

Vermillion Digital

Publisher

Sekai Project

Franchise

—

Availability

Release date

15 Sep 2025

Last update

21 Sep 2025, 08:09 UTC · 12 months ago

Last changenumber

38,342,058

Early Access

Family sharing

Eligible

Store page

None

Prices

Current price

M.A.S.S. Builder Full Details · SteamPeaks