Ninja Issen (忍者一閃)

Side-scrolling ninja platformer where throwing your sword lets you teleport

ASTEROID-J · Published by CFK Co., Ltd. · Released Nov 22, 2023

Reviews: Very Positive; 89% of 53
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 1 year ago; Feb 20, 2025
Minimum PC: GeForce GTX 460; Full requirements

What is Ninja Issen (忍者一閃)?

This single-player, side-scrolling action platformer follows Kiba, a ninja who reaches a futuristic city after being falsely accused of killing his clan's grand master. You fight groups of enemies with a katana and shuriken, deflect projectiles, and teleport past traps. Stages include bosses whose attack patterns can change mid-fight.

For you if...

+you like fast combat mixed with careful trap navigation
+you enjoy learning bosses' changing attack patterns

Not for you if...

−you prefer slower action and fighting enemies one at a time

What players say

89% of 53 reviews are positive

Players praise the soundtrack and pixel art, but commonly criticize visual clutter, camera placement, and hitboxes that are hard to judge. Some also describe the controls as stiff or clunky.

Screenshots and trailer

Ninja Issen (忍者一閃) system requirements

Minimum: GeForce GTX 460.

As published by the developer.

Can my PC run Ninja Issen (忍者一閃)?

Tell us your graphics card once and every game page will answer this for you.

Set up my PC →

Minimum

OS: Windows® 7 (SP1) / Windows® 8 / Windows® 8.1
Processor: 2.6 GHz Intel® Core™ i5-750 or 3.2 GHz AMD Phenom™ II X4 955
Graphics: NVIDIA GeForce GTX 460 or AMD Radeon HD5850 (1 GB VRAM)

Does Ninja Issen (忍者一閃) have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Ninja Issen (忍者一閃) run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 26
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, Korean, Japanese, Simplified Chinese, Traditional Chinese.

Does Ninja Issen (忍者一閃) use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 28, 2026. How to filter AI games on Steam