How many copies has Learn Japanese To Survive! Katakana War sold?

indielist estimates Learn Japanese To Survive! Katakana War has sold between 24,966 and 58,254 units (median 41,610), derived from its 438 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.

Who developed Learn Japanese To Survive! Katakana War?

Learn Japanese To Survive! Katakana War was developed by Sleepy Duck and published by RIVER CROW STUDIO.

Who published Learn Japanese To Survive! Katakana War?

Learn Japanese To Survive! Katakana War was published by RIVER CROW STUDIO, developed by Sleepy Duck. See RIVER CROW STUDIO's full catalogue and submission status on indielist.

When was Learn Japanese To Survive! Katakana War released?

Learn Japanese To Survive! Katakana War was released in 2017.

How many reviews does Learn Japanese To Survive! Katakana War have on Steam?

Learn Japanese To Survive! Katakana War has 438 Steam reviews, of which 92% are positive.

Is Learn Japanese To Survive! Katakana War worth playing?

Steam players rate Learn Japanese To Survive! Katakana War 92% positive across 438 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.

Learn Japanese To Survive! Katakana War

Jan 30, 2017 Adventure $6.99

Developer Sleepy Duck Publisher RIVER CROW STUDIO

Profile updated Jul 2026

Adventure indie game built around learning Japanese katakana, developed by sleepy-duck and published by river-crow-studio. Released in 2017, it has 435 Steam reviews with 92% positive sentiment, and its $6.99 price fits a budget hidden-gem angle.

Learn Japanese To Survive! Katakana War is a 2017 Adventure game developed by Sleepy Duck and published by RIVER CROW STUDIO. On Steam it has gathered 438 player reviews, 92% of them positive, which counts as a very positive reception among indie titles in the Adventure category. The game is available on windows, and launched at $7. The pairing of developer Sleepy Duck with publisher RIVER CROW STUDIO is one of the studio-publisher relationships indielist tracks, letting players find comparable games and letting developers and investors study how Adventure projects reach the market. indielist's white-box method estimates its lifetime sales at roughly 25,000 to 58,000 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, Learn Japanese To Survive! Katakana War can be compared against similar Adventure titles and benchmarked on review counts and estimated sales.

Reviews

438

Positive

92%

Steam appid

554600

Engine

Unknown

Players (snapshot)

Unavailable

Sales estimate

v1.0

25K to 58K

units (median: 42K)

≈ $100K to $233K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)

25K median 58K

+ How is this calculated?

438 reviews × NB(95) = 41,610 median units

Factor	Adjustment
base	+50
year_2017	+30
price_$7	-5
positive_92%	+10
genre_Adventure	+10
final NB	95

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 Learn Japanese To Survive! Katakana War at roughly 25,000 to 58,000 copies, with a median around 42,000, derived from its 438 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $166K 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

14 observed days · window low $6.99

Across 14 observed UTC days from 2026-07-15 to 2026-09-03, the daily lowest tracked USD price across stores ranged from $6.99 to $6.99. The tracked-window low was $6.99 on 2026-07-15.

Real store observations · daily lowest tracked USD price across stores · missing days are not filled.

Where to buy

Affiliate disclosure

Steam reference

$6.99 Buy
Green Man Gaming

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Fanatical

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Humble Store

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GOG.com

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Latest tracked store observations (2026-09-03 06:51 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

Genres

AdventureIndieRPG Strategy

Frequently asked questions

How many copies has Learn Japanese To Survive! Katakana War sold?: indielist estimates Learn Japanese To Survive! Katakana War has sold between 24,966 and 58,254 units (median 41,610), derived from its 438 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
Who developed Learn Japanese To Survive! Katakana War?: Learn Japanese To Survive! Katakana War was developed by Sleepy Duck and published by RIVER CROW STUDIO.
Who published Learn Japanese To Survive! Katakana War?: Learn Japanese To Survive! Katakana War was published by RIVER CROW STUDIO, developed by Sleepy Duck. See RIVER CROW STUDIO's full catalogue and submission status on indielist.
When was Learn Japanese To Survive! Katakana War released?: Learn Japanese To Survive! Katakana War was released in 2017.
How many reviews does Learn Japanese To Survive! Katakana War have on Steam?: Learn Japanese To Survive! Katakana War has 438 Steam reviews, of which 92% are positive.
Is Learn Japanese To Survive! Katakana War worth playing?: Steam players rate Learn Japanese To Survive! Katakana War 92% positive across 438 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.

Players looking for games like Learn Japanese To Survive! Katakana War can compare it on indielist against semantically similar Adventure titles such as Subnautica, Raft, Satisfactory, Human Fall Flat, ranked by shared tags and genre rather than by ad spend. On the developer side, Sleepy Duck's other releases and RIVER CROW STUDIO's wider catalog are one click away, letting developers benchmark where Learn Japanese To Survive! Katakana War 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 Learn Japanese To Survive! Katakana War page serves three audiences at once: players hunting their next Adventure 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.

Matched from shared Steam tags and primary genre. Review count breaks ties; it is not a personal recommendation score.