How many people are playing Radioactivity Demo right now?

Radioactivity Demo is app 3434810 on Steam. Player counts appear once the tracker has sampled it.

What is the all-time peak player count of Radioactivity Demo?

0 concurrent players on 11 Sep 2026.

Radioactivity Demo was released on Steam on 18 Apr 2025.

DemoApp ID 3,434,810by Synthetic Mind Corp.Released 18 Apr 2025

WindowsEngine —

App ID3,434,810

Release date18 Apr 2025

Engine—

Install size3.21 GB

TypeDemo

Last update11 Jun 2025

Steam Deck—

DLC0

DeveloperSynthetic Mind Corp.

Changenumber38,807,749

Price—

Packages0

PublisherSynthetic Mind Corp.

SystemsWindows

Followers—

Depots1

Radioactivity Demo

Steam user reviews

Not enough reviews yet

0 so far · summary at 10

SteamPeaks Rating

Not enough reviews yet

Rated from 10 reviews

Last seen

Sampled 3 hours ago · not a live figure

—of peak

All-time peak

11 Sep 2026

Subs that grant this app

0 packages

No packages seen for app 3434810 yet. Packages appear as their changelists arrive.

Radioactivity Demo Packages · SteamPeaks