How many people are playing Old Ninja : UnderWorld right now?

Old Ninja : UnderWorld has 0 players on Steam right now, with a 24-hour peak of 0 and an all-time peak of 0 on 13 Sep 2026.

What is the all-time peak player count of Old Ninja : UnderWorld?

0 concurrent players on 13 Sep 2026.

When was Old Ninja : UnderWorld released on Steam?

Old Ninja : UnderWorld was released on Steam on 19 Sep 2025.

Status

SteamPeaks

Old Ninja : UnderWorld

GameApp ID 3,968,810by Waterfall StudioReleased 19 Sep 2025

WindowsEngine —

View on SteamSteamCompare

App ID3,968,810

Release date19 Sep 2025

Engine—

Install size519 MB

TypeGame

Last update24 Sep 2025

Steam Deck—

DLC0

DeveloperWaterfall Studio

Changenumber34,988,649

Price—

Packages0

PublisherWaterfall Studio

SystemsWindows

Followers—

Depots1

Compare this game

Old Ninja : UnderWorld

Waterfall Studio
Released 19 Sep 2025·App 3968810

Steam user reviews

Not enough reviews yet

2 so far · summary at 10

SteamPeaks Rating

Not enough reviews yet

Rated from 10 reviews

How it works

Playing now

+0 vs. yesterday

—of peak

All-time peak

13 Sep 2026

Update cadence · public branch

RSS Follow on Discord Add alert

PICS live

353 days

Since last public build

24 Sep 2025, 11:28 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 1 builds since 2025 · UTC

When Waterfall Studio ships

Click a cell to filter the builds table

0369121518

Old Ninja : UnderWorld Patches · SteamPeaks

Old Ninja : UnderWorld

Builds

All public

Major patches only

Date	Day	Time	Patch title	Build ID	Branch	Depots	Download Δ
24 Sep 2025	Wed	11:28	No patch notes · unannounced build	20108100	public	1	—

public branch · shipped todayother branchwide buildhas patch notes

Showing 1 of 1 builds · Δ is the compressed download for the public branch, available once the depot worker runsLoad older builds

Old Ninja : UnderWorld

When Waterfall Studio ships

Old Ninja : UnderWorld

When Waterfall Studio ships

Patch notes

Builds