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90% positive of 53 ยท Very Positive ยท Live from Steam
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With its cyberpunk city brought to life with retro graphics, Ninja Issen invites players into a world filled with "hyper ninja action" as they work alone to annihilate waves of enemy troops using a variety of ninja skills and fight bosses coming at you with relentless, diverse attack patterns.
Live data from Steam, tracked by SteamPlayerBase.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 90% on 2026-11-01 โ 90% today (53 reviews)
No authorized Steam key store lists this game right now.
1 item on Steam, newest first.

Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
Hello from the team at CFK. Thank you so much for all of the interest and affection you've shown to hyper ninja action game Ninja Issen. Today (Feb 20th), alongside the release of version 1.30 of Ninja Issen to Steam, we would like to announce the good news reโฆ
Hello from the team at CFK. Thank you for all of the love and attention you've paid to hyper ninja action game Ninja Issen. In order to create a richer, smoother gaming experience for players, patch 1.25 will be released today (8/30) with the following changesโฆ
Hello from the team at CFK. Thank you for all of the love and attention you've paid to hyper ninja action game Ninja Issen. In order to create a richer, smoother gaming experience for players, patch 1.11 will be released today (5/23) with the following changesโฆ
Hello from the team at CFK. Thank you for all of the love and attention you've paid to hyper ninja action game Ninja Issen. In order to create a richer, smoother gaming experience for players, patch 1.10 will be released today (3/7) with the following changes:โฆ
Hello from the team at CFK. Thank you for all of the love and attention you've paid to hyper ninja action game Ninja Issen. In order to create a richer, smoother gaming experience for players, patch 1.09 will be released today (1/18) with the following changesโฆ
Hello, this is CFK. Thank you for the outpouring of love and attention youโve shown for hyper ninja action game Ninja Issen (ๅฟ่ ไธ้). To provide a smoother gameplay experience to players, patch version 1.088 will be released today (12/26) with the following chanโฆ
Hello, this is CFK. Today, we have joined forces with Monster Theater to bring the newใNinja Issen x Atomic Owlใbundle! Seriously, look at how cool these games look. Wishlist them, buy the bundle, and review our games on Steam. About Ninja: Issen Ninja Issen iโฆ
Hello from the team at CFK. We're happy to announce that hyper ninja action game Ninja Issen (ๅฟ่ ไธ้) is officially going to be participating in the Anime Game Festival event! The Anime Game Festival is an online event where games combining animation aspects andโฆ
Hello from the team at CFK. Hyper ninja action game Ninja Issen (ๅฟ่ ไธ้) to be featured at the INDIE Live Expo 2024, a program that introduces games to eager eyes from all around the globe! On May 25th, you will be able to catch Ninja Issen (ๅฟ่ ไธ้) featured on Yoโฆ
Hello from the team at CFK. Hyper ninja action game Ninja Issen coming at a discount like a warm Spring breeze! Get Ninja Issen at a 35% discount during the Steam Spring Sale 2024. In addition to the addition of a new passive skill on the 7th, players will be โฆ
Hello, this is CFK. Hyper ninja action game Ninja Issen (ๅฟ่ ไธ้) will be participating in the 2024 Steam Pirates vs. Ninjas Fest! During the 2024 Steam Pirates vs. Ninjas Fest, experience all the pleasing action of cutting down your foes with a slice in the hypeโฆ
Hello, this is CFK. Thank you for the outpouring of love and attention youโve shown for hyper ninja action game Ninja Issen (ๅฟ่ ไธ้). Today (Nov. 23), Ninja Issen (ๅฟ่ ไธ้) is finally available around the globe on the Steam store! This release is all thanks to the โฆ
If you are in the mood for a game about dancing around screens full of energy beams and projectiles, searching for that fleeting window of space in which you can stop and perform an attack, I recommend trying the demo for Ninja Issen. If you miss 8 or 16-bit pโฆ
Hello, this is CFK. Thank you for the outpouring of love and attention youโve shown for hyper ninja action game Ninja Issen (ๅฟ่ ไธ้). On Thursday, November 23, the official version of Ninja Issen (ๅฟ่ ไธ้) will finally be released! We would like to extend our deepeโฆ
Hello, We are proud to announce that the hyper ninja action game Ninja Issen (ๅฟ่ ไธ้) will be featured at Steam Next Fest 2022. To prepare for the big event, developer Asteroid-J is releasing the latest version of the Ninja Issen demo today! Todayโs Ninja Issen โฆ