Announcement
Fixed UI-related bugs
Fixed an issue occurring during mouse interactions with the health bar
Steam
Ninnin
Also known as Ninnin, n, ninnin
"Fifty City," where ordinary people and ninjas live together. However, the city is in turmoil due to ruthless "hunter" gangs. Ninja girl "Ninnin" infiltrates a gang to save the city!!
Last update
17 Jun 2026
Players now
0
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- February 2026
- Add AchievementNew achievements have been added! Defeat the boss and unlock them all~!!
- December 2024
- Merry ChristmasWinter has come to Fifty City too Be careful not to catch a cold in this cold winter Merry Christmas with the boss you want in Nininin~
- November 2024
- Tutorial UpdateUpdate the tutorial for Part 3. Also, descriptions of bosses have been added. Have fun playing~!!!
- October 2024
- Happy HalloweenHalloween Update The appearance of the bomb that Ninnin throws has been changed to a pumpkin shape. Halloween objects for all maps have been added.
- September 2024
- Add resolution optionsThe option to change the resolution has been added to the Options pane.
- August 2024
- Bug FixFixed a bug where Split doesn't throw potions. Fixed a bug where 1 phase of attack motion would not disappear when Joel switched to phase.
- The last boss is hereNinnin last boss Hayato is here!! Please take down the boss and protect Fifty City!! (Part 3 tutorial, boss additional explanation will be updated later~)
- July 2024
- Tutorial Bug FixI was developing a game and only recently found out that there are bugs in tutorial manipulation and animation. I'm really sorry. Now the animation in the tutorial has become a little smoother and I've fixed a bug where…
- Bug FixFixed a bug that didn't allow you to click the home button after the game ended. Also, the final boss Hayato is also working hard to develop, so please look forward to it.
- May 2024
- New Setting SystemYou can now control the volume and key bindings in any scene. You can open it with the Esc key.
- April 2024
- Bug FixFixed a bug that could not enter when the sewer gimmick appearing in Part 2 was pressed with the w key. You can now use the sewer gimmick by pressing the w key. And now you can press the w key and jump down.
Gallery
In-game media
Achievements
Community progression
Top picks from 13 Steam achievements, sorted by player unlock rates.
- VillainVillain Clear9.3%
- PigmaskPigmask Clear8.2%
- BomberBomber Clear7.7%
- WitchWitch Clear7.1%
- RattoRatto Clear6.6%
- ElgeElge Clear5.5%