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

Old Ninja : UnderWorld is app 3968810 on Steam. Player counts appear once the tracker has sampled it.

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

0 concurrent players on 15 Sep 2026.

When was Old Ninja : UnderWorld released on Steam?

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

Old Ninja : UnderWorld News

No announcements yet · from Old Ninja : UnderWorld’s Steam news feed

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This developer has not posted announcements to Steam, or we have not read their feed yet.

Announcements are the developer’s own posts to the game’s Steam news feed: updates and their patch notes, in-game events, releases and sales. The important ones are marked on the players chart.