Game overview
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 tracked players
- 0
- Recorded peak
- Unavailable
- 24-hour change
- Unavailable
Delayed observation · last tracked . Values marked unavailable are not estimated. Recorded peak is the highest player count observed by SteamIQHQ; earlier records may be outside our coverage.
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Old Ninja: Underworld – Overview
🔍 Exploration
The underground world is a labyrinth, much like an ant nest. Some paths may be inaccessible at first. In such cases, explore thoroughly and search for upgrade items. These items will guide the ninja to new areas.

⚔️ Combat
The ninja wields not only swords and shurikens, but also a variety of attack techniques. Use them wisely to challenge formidable enemies.

📈 Upgrades
Defeating monsters in the underground world grants experience points. Leveling up enhances your abilities. Power up and cut through the hordes of monsters.

👹 Monsters
Various monsters roam the underground world, seemingly originating from different realms. Defeat the final boss lurking deep within this chaotic domain.
🔥 Fast Travel
Campfires are scattered throughout the world. You can fast travel between them to explore the underground world more comfortably.

📖 Story
This game has no story—none at all.
It’s purely focused on exploration, combat, and upgrades. That’s what it does, and it does it well.
Note: Xbox controllers are supported, but some actions—such as settings and fast travel—may require mouse input. Thank you for your understanding.
Note: Key configuration is available, but please note that some display elements may not appear correctly. We appreciate your understanding.
Note: To ensure a comfortable experience with the full version, we recommend trying the demo first. Please check the system compatibility and gameplay feel before making your purchase.
Streaming Guidelines
Include the store page URL in the video description.
Include the title “Old Ninja: Underworld” in the video title.
As long as these conditions are met, you are free to stream or create videos using this game.
Monetization is allowed.
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Estimated completion time: 1h~2h
Media gallery 6 screenshots · 0 videos
Screenshots
Player activity
Concurrent players over the last 48 hours.
System requirements Windows
Windows
Minimum
Minimum:- Requires a 64-bit processor and operating system
- OS: Windows 11 64-bit
- Processor: Quad-core Intel or AMD processor (2.5 GHz or higher)
- Memory: 8 MB RAM
- Graphics: NVIDIA GeForce GTX 770 or AMD Radeon RX 470 or higher
- DirectX: Version 11
- Storage: 1 GB available space
Recommended
Recommended:- Requires a 64-bit processor and operating system
- OS: Windows11 64-bit
- Processor: AMD Ryzen 7 2700X, Intel Core i7-8700K or higher
- Memory: 32 MB RAM
- Graphics: NVIDIA GeForce RTX 3070 or AMD Radeon RX 6800 or higher
- DirectX: Version 12
- Storage: 1 GB available space
Game details Languages, features & support
- Publisher
- Waterfall Studio
- Brazilian rating
- 14
- Steam Germany rating
- 16
- Controller support
- partial
- Features
- Single-player, Camera Comfort, Custom Volume Controls, Playable without Timed Input, Stereo Sound, Partial Controller Support, Family Sharing
- Languages
- Japanese, English
- Support
- [email protected]
More analysis Activity patterns, updates & developer tools
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