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Action indie game Ninja Issen (忍者一閃) launched in 2023, developed by asteroid-j and published by cfk-co-ltd. Its 84 Steam reviews are 92% positive, earning a Very Positive rating; the initial price was $14.99.
Overview
Ninja Issen (忍者一閃) is a 2023 Action game developed by ASTEROID-J and published by CFK Co., Ltd.. On Steam it has gathered 85 player reviews, 91% of them positive, which counts as a very positive reception among indie titles in the Action category. The game is available on windows, and launched at $15. The pairing of developer ASTEROID-J with publisher CFK Co., Ltd. is one of the studio-publisher relationships indielist tracks, letting players find comparable games and letting developers and investors study how Action projects reach the market. indielist's white-box method estimates its lifetime sales at roughly 3,000 to 7,000 units, with the full Boxleiter factor breakdown shown on this page rather than a single black-box figure. Within indielist's catalog of indie games mapped to their studios, publishers, and funding, Ninja Issen (忍者一閃) can be compared against similar Action titles and benchmarked on review counts and estimated sales.
Reviews
85
Positive
91%
Steam appid
1714550
Engine
Unknown
Players (snapshot)
Unavailable
Sales estimate
v1.03K to 7K
units (median: 5K)
≈ $26K to $61K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)
+ - How is this calculated?
| Factor | Adjustment |
|---|---|
| base | +50 |
| year_2023 | 0 |
| price_$15 | 0 |
| positive_91% | +10 |
| final NB | 60 |
Heuristic display range: median × [0.6, 1.4]. Boundary protection: NB ∈ [15, 150].
Methodology & limitations
Sales estimates use an additive Boxleiter-derived heuristic against public Steam review
counts. They are not authoritative sales data, and the fixed display range
is not a statistically validated confidence interval. Actual results may fall outside it,
especially for deeply discounted or bundle-heavy titles. Algorithm version
v1.0. Read the exact method and validation status.
indielist estimates lifetime unit sales for Ninja Issen (忍者一閃) at roughly 3,000 to 7,000 copies, with a median around 5,000, derived from its 85 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $44K in net revenue after Steam's 30% cut, regional pricing, and refunds. Unlike black-box trackers, the full calculation is shown on this page: a base review-to-sales multiplier is adjusted for release year, launch price, review sentiment, studio size, and genre, and every adjustment is listed so developers, publishers, and investors can audit exactly how the figure was reached. The range itself reflects genuine uncertainty — review-to-sales ratios vary widely between games — so indielist publishes a low, median, and high band rather than a false-precision single number, and treats free-to-play, heavily discounted, and bundle-distributed titles as having wider error margins still.
Price history
13 observed days · window low $4.49Across 13 observed UTC days from 2026-07-29 to 2026-10-21, the daily lowest tracked USD price across stores ranged from $4.49 to $14.99. The tracked-window low was $4.49 on 2026-10-07.
Real store observations · daily lowest tracked USD price across stores · missing days are not filled.
Where to buy
Affiliate disclosureLatest tracked store observations (2026-10-21 06:39 UTC), cheapest first. Prices may have changed since observation. Some are affiliate links — we may earn a commission at no extra cost to you. Learn more.
Platforms
windows
Frequently asked questions
- How many copies has Ninja Issen (忍者一閃) sold?
- indielist estimates Ninja Issen (忍者一閃) has sold between 3,060 and 7,140 units (median 5,100), derived from its 85 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
- Who developed Ninja Issen (忍者一閃)?
- Ninja Issen (忍者一閃) was developed by ASTEROID-J and published by CFK Co., Ltd..
- Who published Ninja Issen (忍者一閃)?
- Ninja Issen (忍者一閃) was published by CFK Co., Ltd., developed by ASTEROID-J. See CFK Co., Ltd.'s full catalogue and submission status on indielist.
- When was Ninja Issen (忍者一閃) released?
- Ninja Issen (忍者一閃) was released in 2023.
- How many reviews does Ninja Issen (忍者一閃) have on Steam?
- Ninja Issen (忍者一閃) has 85 Steam reviews, of which 91% are positive.
- Is Ninja Issen (忍者一閃) worth playing?
- Steam players rate Ninja Issen (忍者一閃) 91% positive across 85 reviews. indielist doesn't score games editorially; it surfaces public review sentiment and a white-box sales estimate so you can judge reception and reach yourself.
Ecosystem
Players looking for games like Ninja Issen (忍者一閃) can compare it on indielist against semantically similar Action titles such as Terraria, Rust, Phasmophobia, Geometry Dash, ranked by shared tags and genre rather than by ad spend. On the developer side, ASTEROID-J's other releases and CFK Co., Ltd.'s wider catalog are one click away, letting developers benchmark where Ninja Issen (忍者一閃) sits among a studio's body of work and how its publisher's portfolio performs. Because indielist maps studios, publishers, games, and funding into one connected graph, the same Ninja Issen (忍者一閃) page serves three audiences at once: players hunting their next Action game, developers studying how comparable projects were positioned and what they sold, and investors tracing which teams and labels are active in the space. A machine-readable markdown mirror of this page is published at the same path with a .md suffix for AI assistants, and its review, price, and sales-estimate figures are refreshed on a schedule rather than frozen at launch.
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