Old Ninja : UnderWorld
Old Ninja: Underworld is a 2D pixel-art Metroidvania action game where an aging ninja explores a chaotic underground world. Battle through a bizarre mix of enemies with no apparent connection, strengthen your ninja, and challenge the boss lurking deep below.
Last Updated: 9/27/2025
| Steam Price | $2.99 |
| Release Date | 9/19/2025 |
| Developer | Waterfall Studio |
| Publisher | Waterfall Studio |
| Steam App Id | 3968810 |
Old Ninja : UnderWorld
Old Ninja: Underworld is a 2D pixel-art Metroidvania action game where an aging ninja explores a chaotic underground world. Battle through a bizarre mix of enemies with no apparent connection, strengthen your ninja, and challenge the boss lurking deep below.
Last Updated: 9/27/2025
- Windows
- Mac
- Linux
About Old Ninja : UnderWorld
Old Ninja : UnderWorld is an Indie, Adventure, and Action game developed by Waterfall Studio. On 9/19/2025, it was released on the Steam Store by Waterfall Studio.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Old Ninja : UnderWorld supports the following features:
- Single-player
- Partial Controller Support
- Family Sharing
- Stereo Sound
- Playable without Timed Input
- Custom Volume Controls
- Camera Comfort
From the Steam community, Old Ninja : UnderWorld has been tagged with the following user tags:
- Side Scroller
- Fantasy
- Tutorial
- Pixel Graphics
- Controller
- Metroidvania
- Action-Adventure
- Underground
- Action RPG
- PvE
- Indie
- Action
- Adventure
- Singleplayer
- 2D
- Exploration
Media & Sceenshots
Watch the featured video for Old Ninja : UnderWorld and see the latest screenshots from the Steam Store.
Related Packages
Old Ninja : UnderWorld is referenced by 1 package in the Steam Store. A package (or sub) is simply an item that can be purchased on Steam.
| Name | Price | Actions |
|---|---|---|
| Old Ninja : UnderWorld | $2.39 | View |
Supported Languages and Localizations
Old Ninja : UnderWorld is available in 2 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| Japanese | Yes | No | No |
| English | Yes | No | No |
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Features & Categories
Frequently Asked Questions
Soures & References
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Old Ninja : UnderWorld data has been sourced from:
- Valve Corporation. (2025, September 27). Old Ninja : UnderWorld on Steam. Steam Store.
- Valve Corporation. (2025, September 27). Old Ninja : UnderWorld. Steam Community Hub.