戦う情報システム部 key art · Steam store artwork

Partially verifiedSteam

戦う情報システム部

Name: 戦う情報システム部
Price: 3 USD
Availability: InStock
Author: CandyRock

An incident-response adventure played with real Linux commands, coded entirely by Claude Code.

Genre: Adventure Simulation
Developer: CandyRock
Release date: Oct 30, 2026
Price: $3.00Playable now
Languages: Japanese onlyJapanese
Officialas of Nov 3, 2026Steam
Steam store “Supported languages”.
Gameplay: Text-Based Interactive Story
Development method: Vibe-Coded
AI coding tools: Claude Code

View on Steam All ways to play ↓

Links go to the official store or developer page. Last verified Nov 3, 2026.

Where to play

Every platform this game is on. Links are checked against official sources; we never host or mirror games.

SteamReleased$3.00
Download through the Steam app. A free Steam account is required.
Desktop · Steam
View on Steam

About 戦う情報システム部

A Japanese-language incident-response adventure: you become the only IT administrator left at an exploitative company and stop cover-ups and a large cyberattack by typing real Linux commands. The developer, CandyRock, says in a Qiita devlog that Claude Code wrote the Unity C# code and the terminal engine (about 52,200 lines) with no hand-written lines, while Google Gemini drafted the scenario and image AI made the art. The Steam AI disclosure says the same and that no AI runs while the game is played. It is a paid Windows game on Steam.

linuxhackingit-departmenttypingunity

How it was built

Partially verified

Claude CodePrimary

Lead engineer per the developer's devlog: implemented the Unity C# code and the Linux command emulator, converted scripts into stage data, ran automated checks and kept the Markdown docs up to date. The devlog names the models Claude Opus 5, Claude Fable 5.1 and Claude Opus 5.5 (plus 13 responses from Claude Opus 4.8 on 10-12 September), and reports zero hand-written lines of C#. Google Gemini 3.1 Pro drafted the scenario and audited scripts; image AI (NanoBananaPro2) made the art. Neither wrote game code.

Developer Reportedコードを1行も書かずに26日で5.2万行。Gemini と Claude Code と「情シスのインシデント対応」ゲームを作って Steam に出した話

Supporting evidence

DeveloperSteam AI disclosure: implementation and dialogue revisions were done with Claude Code; scenario draft with Google Gemini; images from image-generation AI, selected and edited by a human; no AI-generated content at runtime. — Steam

Development approach

The developer acted as producer and tester; Claude Code wrote all the code, Gemini drafted the scenario and audited scripts, image AI made the art. The terminal engine is pure C# without UnityEngine dependencies, so the AI could work headless.

Engine / framework: Unity
Languages: C#, Python
Team size: Not disclosed
Initial build time: 26 days (22 working days) from first commit to the v1.0 buildDeveloper ReportedQiita (@candynex)
Development time: Not disclosed
Development cost: Not disclosed
AI-written code: ~100% of shipped codeDeveloper ReportedQiita (@candynex)

Qiita devlog (Japanese)

Verification notes: Release date, price, platform and languages from the Steam store API. AI use from the developer's Qiita devlog and the Steam AI disclosure, which agree. Line counts (about 52,200 lines of C# in 137 files, about 10,900 lines of Python tooling), the zero-hand-written-lines claim and the 26-day timeline are developer-reported and not independently checked. No English title exists on Steam.

Development history

Sep 5, 2026
First commit; coding starts.
DeveloperQiita (@candynex)
Sep 30, 2026
v1.0 build frozen.
DeveloperQiita (@candynex)
Oct 30, 2026
Released on Steam for Windows.
OfficialSteam

Game performance

Each figure measures something different — concurrent players, owners, downloads and sales are never interchangeable and are never added together. Labels show where each number comes from.

Steam

Released$3.00 Store page

US store price $3.00; a 15% launch discount ($2.55) was running when checked. Japanese store: ¥480 (¥408 with the launch discount).

Concurrent players

Observed

as of Nov 3, 2026Valve

Players online at our snapshot on 3 Nov 2026 from the Steam Web API. One reading, not a peak or a total.

All-time peak concurrent players

Not disclosed

Not publicly available: Steam reviews, Positive Steam reviews, Estimated owners, Gross revenue.

Sales & revenue (all platforms)

Copies sold

Not disclosed

Reviews & rankings

Editorial review

Not yet reviewed by our editors.

Community rating

No community votes yet · ranking needs 25+ votes

Your quality rating

Your originality rating

Prototype: your vote is kept only in this browser and is not counted anywhere.

Ranking positions

Not currently ranked.

Player reviews

No player reviews yet.

Prototype: reviews are stored in your browser only and are not published or sent to a server. Reviews are shown in the language they were written in.

Sources

Source	Type	Published	Accessed
戦う情報システム部 on Steam Steam	Store page	Oct 30, 2026	Nov 3, 2026
コードを1行も書かずに26日で5.2万行。Gemini と Claude Code と「情シスのインシデント対応」ゲームを作って Steam に出した話 Qiita (@candynex) · Japanese	Devlog	Oct 30, 2026	Nov 3, 2026
Steam Web API: current players (app 5326350) Valve	Official site	Not confirmed	Nov 3, 2026