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.
Steam price history
Current Price
$2.99
Lowest Recorded Price
$2.39 at -20%
19 September 2025
| Currency | Current Price | Converted Price | Lowest Recorded Price | ||
|---|---|---|---|---|---|
 U.S. Dollar |
$2.99 | $2.99 | $2.39 | $2.39 at -20% | |
 Russian Ruble |
125 ₽ | $1.56 | -47.71% | $1.25 | 100 ₽ at -20% |
 Kazakhstani Tenge |
890₸ | $1.67 | -43.99% | $1.33 | 712₸ at -20% |
 Vietnamese Dong |
45000₫ | $1.71 | -42.79% | $1.36 | 36000₫ at -20% |
 Indonesian Rupiah |
Rp 28999 | $1.74 | -41.67% | $1.39 | Rp 23199 at -20% |
 Indian Rupee |
₹ 155 | $1.74 | -41.49% | $1.39 | ₹ 124 at -20% |
 Ukrainian Hryvnia |
74₴ | $1.75 | -41.15% | $1.40 | 59₴ at -20% |
 South African Rand |
R 32.00 | $1.85 | -38.12% | $1.48 | R 25.60 at -20% |
 Philippine Peso |
₱109.95 | $1.86 | -37.53% | $1.49 | ₱87.96 at -20% |
 South Asia - USD |
$1.89 | $1.89 | -36.79% | $1.51 | $1.51 at -20% |
 Brazilian Real |
R$ 10,49 | $1.94 | -34.85% | $1.55 | R$ 8,39 at -20% |
 LATAM - U.S. Dollar |
$1.99 | $1.99 | -33.44% | $1.59 | $1.59 at -20% |
 MENA - U.S. Dollar |
$1.99 | $1.99 | -33.44% | $1.59 | $1.59 at -20% |
 Chilean Peso |
CLP$ 1900 | $2.01 | -32.58% | $1.61 | CLP$ 1520 at -20% |
 Malaysian Ringgit |
RM8.50 | $2.02 | -32.18% | $1.62 | RM6.80 at -20% |
 Mexican Peso |
Mex$ 39.00 | $2.10 | -29.66% | $1.68 | Mex$ 31.20 at -20% |
 Chinese Yuan |
¥ 15 | $2.10 | -29.45% | $1.68 | ¥ 12 at -20% |
 Colombian Peso |
COL$ 8200 | $2.11 | -29.39% | $1.68 | COL$ 6560 at -20% |
 Kuwaiti Dinar |
0.65 KD | $2.11 | -29.15% | $1.69 | 0.52 KD at -20% |
 Saudi Riyal |
7.95 SR | $2.11 | -29.10% | $1.69 | 6.36 SR at -20% |
 Thai Baht |
฿69.00 | $2.13 | -28.66% | $1.70 | ฿55.20 at -20% |
 Taiwan Dollar |
NT$ 66 | $2.14 | -28.15% | $1.69 | NT$ 52 at -21% |
 CIS - U.S. Dollar |
$2.19 | $2.19 | -26.76% | $1.75 | $1.75 at -20% |
 Peruvian Sol |
S/.7.50 | $2.20 | -26.21% | $1.76 | S/.6.00 at -20% |
 Qatari Riyal |
8.19 QR | $2.24 | -25.01% | $1.79 | 6.55 QR at -20% |
 Japanese Yen |
¥ 350 | $2.27 | -24.01% | $1.81 | ¥ 280 at -20% |
 South Korean Won |
₩ 3400 | $2.38 | -20.36% | $1.90 | ₩ 2720 at -20% |
 Uruguayan Peso |
$U95 | $2.38 | -20.34% | $1.90 | $U76 at -20% |
 U.A.E. Dirham |
9.00 AED | $2.45 | -18.04% | $1.96 | 7.20 AED at -20% |
 Singapore Dollar |
S$3.25 | $2.49 | -16.39% | $1.99 | S$2.60 at -20% |
 New Zealand Dollar |
NZ$ 4.49 | $2.57 | -13.94% | $2.05 | NZ$ 3.59 at -20% |
 Hong Kong Dollar |
HK$ 20.00 | $2.57 | -13.89% | $2.05 | HK$ 16.00 at -20% |
 Canadian Dollar |
CDN$ 3.89 | $2.78 | -6.99% | $2.22 | CDN$ 3.11 at -20% |
 Costa Rican Colon |
₡1400 | $2.78 | -6.82% | $2.22 | ₡1120 at -20% |
 Australian Dollar |
A$ 4.50 | $2.94 | -1.42% | $2.35 | A$ 3.60 at -20% |
 British Pound |
£2.49 | $3.27 | +9.53% | $2.61 | £1.99 at -20% |
 Norwegian Krone |
33,50 kr | $3.32 | +11.35% | $2.66 | 26,80 kr at -20% |
 Israeli New Shekel |
₪10.95 | $3.36 | +12.50% | $2.69 | ₪8.76 at -20% |
 Euro |
2,99€ | $3.45 | +15.67% | $2.76 | 2,39€ at -20% |
 Polish Zloty |
13,49zł | $3.67 | +22.95% | $2.94 | 10,79zł at -20% |
 Swiss Franc |
CHF 3.29 | $4.10 | +37.22% | $3.27 | CHF 2.63 at -20% |
Valve suggested prices are shown on package pages.
Price history
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Tags
Categories
Hardware Categories
Accessibility Categories
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 |
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 |
