Old Ninja : UnderWorld
| App ID | 3968810 |
| App Type | Game |
| Developer | Waterfall Studio |
| Publisher | Waterfall Studio |
| Supported Systems | Windows |
| Technologies | Unreal Engine, EpicOnlineServices SDK |
| Last Changenumber | 31282960 |
| Last Record Update | 24 September 2025 – 11:28:29 UTC ( |
| Release Date | 19 September 2025 – 15:01:53 UTC ( |
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.
Additional Information
| Developer | Waterfall Studio | |||||||||||||||||||
| controller_support | partial | |||||||||||||||||||
| ReleaseState | released | |||||||||||||||||||
| Publisher | Waterfall Studio | |||||||||||||||||||
| Store Release Date | 19 September 2025 – 15:01:55 UTC ( |
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| osarch | 64 | |||||||||||||||||||
| community_hub_visible | Yes | |||||||||||||||||||
| Social Media | https://x.com/WaterfallStadi0 https://www.youtube.com/@Waterfall_Studio |
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| Primary Genre | Action (1) | |||||||||||||||||||
| Store Genres | Action (1), Adventure (25), Indie (23) | |||||||||||||||||||
| Steam Release Date | 19 September 2025 – 15:01:53 UTC ( |
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| Store Asset Modification Time | 11 September 2025 – 12:33:00 UTC ( |
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| library_assets |
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| osextended | empty string | |||||||||||||||||||
| name_localized |
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| Detected Technologies (?) | Unreal Engine, EpicOnlineServices SDK, Intel_oneTBB SDK, NVIDIA_Nsight_Aftermath SDK, Ogg SDK, Vorbis SDK, XAudio2 SDK | |||||||||||||||||||
| controllertagwizard | Yes | |||||||||||||||||||
| AI Content Type | 1 | |||||||||||||||||||
| First seen on SteamDB | 19 August 2025 – 04:27:38 UTC ( |
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Supported Languages
| 2 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| Japanese | Yes | ||
| English | Yes |
Tags
Categories
Hardware Categories
Accessibility Categories
Assets
Load all asset images
| trailer_name | Trailer |
| trailer_category | 1 |
| trailer_480p ↴ | |
| video/webm | 257190699/movie480_vp9.webm |
| video/mp4 | 257190699/movie480.mp4 |
| trailer_max ↴ | |
| video/webm | 257190699/movie_max_vp9.webm |
| video/mp4 | 257190699/movie_max.mp4 |
| microtrailer ↴ | |
| video/webm | 3968810/1394170968/fae6237a29a0725b76006146db84b10e2bd158ea/1756472044/microtrailer.webm |
| video/mp4 | 3968810/1394170968/fae6237a29a0725b76006146db84b10e2bd158ea/1756472044/microtrailer.mp4 |
| adaptive_trailers ↴ | |
| dash_av1 | 3968810/1394170968/fae6237a29a0725b76006146db84b10e2bd158ea/1756472044/dash_av1.mpd |
| dash_h264 | 3968810/1394170968/fae6237a29a0725b76006146db84b10e2bd158ea/1756472044/dash_h264.mpd |
| hls_h264 | 3968810/1394170968/fae6237a29a0725b76006146db84b10e2bd158ea/1756472044/hls_264_master.m3u8 |
| screenshot_medium | 257190699/c3f5c1f7a36a8036149fe7310d278582d8cd95f5/movie_600x337.jpg |
| screenshot_full | 257190699/c3f5c1f7a36a8036149fe7310d278582d8cd95f5/movie_full.jpg |
| all_ages | true |
| is_highlight | true |
| timestamp | 29 August 2025 – 13:08:04 UTC |
