How many people are playing Red Siren: Space Defense right now?

Red Siren: Space Defense is app 3985600 on Steam. Player counts appear once the tracker has sampled it.

What is the all-time peak player count of Red Siren: Space Defense?

0 concurrent players on 10 Sep 2026.

When was Red Siren: Space Defense released on Steam?

Red Siren: Space Defense was released on Steam on 4 Dec 2025.

Status

SteamPeaks

Red Siren: Space Defense

GameApp ID 3,985,600by ISTOM GamesReleased 4 Dec 2025

WindowsEngine —

View on SteamSteamCompare

App ID3,985,600

Release date4 Dec 2025

Engine—

Install size943 MB

TypeGame

Last update1 Dec 2025

Steam Deck—

DLC0

DeveloperISTOM Games

Changenumber34,989,575

Price—

Packages0

PublisherISTOM Games

SystemsWindows

Followers—

Depots1

Compare this game

Red Siren: Space Defense

ISTOM Games
Released 4 Dec 2025·App 3985600

Steam user reviews

Not enough reviews yet

6 so far · summary at 10

SteamPeaks Rating

Not enough reviews yet

Rated from 10 reviews

How it works

Last seen

Sampled 5 hours ago · not a live figure

—of peak

All-time peak

10 Sep 2026

Update cadence · public branch

RSS Follow on Discord Add alert

PICS live

283 days

Since last public build

1 Dec 2025, 11:33 UTC

—

Median interval

Pattern appears after five builds

Builds in 30 days

0 with patch notes · 0 unannounced

—

Downloaded in 30 days

Quiet · no builds in 30 days

All 2 builds since 2025 · UTC

When ISTOM Games ships

Click a cell to filter the builds table

0369121518

Red Siren: Space Defense Patches · SteamPeaks

Red Siren: Space Defense

Builds

All public beta

Major patches only

Date	Day	Time	Patch title	Build ID	Branch	Depots	Download Δ
1 Dec 2025	Mon	11:33	No patch notes · unannounced build	21005401	public	1	—
1 Dec 2025	Mon	11:32	No patch notes · unannounced build	21005401	beta	1	—

public branch · shipped todayother branchwide buildhas patch notes

Showing 2 of 2 builds · Δ is the compressed download for the public branch, available once the depot worker runsLoad older builds

Red Siren: Space Defense

When ISTOM Games ships

Red Siren: Space Defense

When ISTOM Games ships

Patch notes

Builds