How many people are playing Mono right now?

Mono is app 4273540 on Steam. Player counts appear once the tracker has sampled it.

What is the all-time peak player count of Mono?

3 concurrent players on 13 Sep 2026.

When was Mono released on Steam?

Mono was released on Steam on 29 Jun 2026.

Status

SteamPeaks

Mono

GameApp ID 4,273,540by Project MonoReleased 29 Jun 2026

WindowsEngine —

View on SteamSteamCompare

App ID4,273,540

Release date29 Jun 2026

Engine—

Install size545 MB

TypeGame

Last update13 Sep 2026

Steam DeckPlayable

DLC0

DeveloperProject Mono

Changenumber38,832,190

Price—

Packages0

PublisherProject Mono

SystemsWindows

Followers—

Depots1

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Mono

Project Mono
Released 29 Jun 2026·App 4273540

Steam user reviews

Not enough reviews yet

7 so far · summary at 10

SteamPeaks Rating

Not enough reviews yet

Rated from 10 reviews

How it works

Last seen

Sampled 42 minutes ago · not a live figure

—of peak

All-time peak

13 Sep 2026

6 announcements · from Mono’s Steam news feed

All gamesRead every half hour while active

Everything Updates3 In-game events1 Releases1 Community1

In-game event13 Sep 2026Ver. 1.2.0 UpdateThank you for playing Mono ! We have released Version 1.2.0. This update includes functional improvements and bug fixes outlined below: · Added Difficulty Selection You can now choose your preferred difficulty level at the start of the game or from the options menu. Available options: Very Easy, Easy, Normal, Hard, and Custom. Note: Existing save data will default to "Normal." · Added Module Re…Game update

Mono News · SteamPeaks

Published	Kind	Announcement	Build
5 Jul 2026, 12:18 UTC	Game update	Ver 1.1.0 Update Thank you for playing " Mono" . We have just released Ver 1.1.0! This update includes the following feature improvements and bug fixes: · Added Steam Achievements If you already have a completed save data, the achievements will be unlocked automatically upon launching the game. · Added Screen Mode Toggle You can now switch between Fullscreen and Windowed modes from the Options menu. · Adjusted…	24060310
29 Jun 2026, 14:06 UTC	Steam news	2D Action Game "Mono" — An Adventure in a Monochrome World — is Now Available! We are excited to announce that Mono , a 2D action game set in a monochrome world, is now available on Steam! The game offers a fun, accessible take on the Metroidvania genre. To celebrate the launch, Mono is available at a 20% discount until Monday, July 13 at 10:00 AM (GMT-7) / 2:00 AM (JST) !	—
28 Jun 2026, 14:41 UTC	Announcement	Just 1 Day Until the Release of "Mono"! Only 1 day left until the launch of "Mono", a 2D action game where you explore a monochrome world! The release is scheduled for [18:00 JST]. Please hang tight just a little longer until the launch!	—