Three Harbor Signs / 港に残った三つのしるし

Two clue sheets, one conversation

Play the first case free

Play A Letter Without an Addressee in your browser (English)

The first of the three cases is free to play through its answer and ending. The paid collection includes this case plus two more cases and the collection’s closing story. No purchase is needed to finish the free case.

Prefer to test the files on your own device? Use “Download demo” below and choose harbor-firstcase-bilingual-trial-v1.0.0.zip. Unzip all files together, open index.html and choose English or Japanese. It contains the same complete free first case through its answer and ending. No purchase is needed. The older English-only demo is also available.

The screenshot shows a clue from the complete free first case. Try that same case using the free link on this page before deciding on the full set.

Prefer paper? Save the complete free English PDF and prepare your player pages. It finishes with its answer and ending. The paid collection adds two different cases; the same purchase includes the 13-page English PDF and English/Japanese HTML games.

Your clues and your partner’s clues come together to solve three small mysteries by the harbor.

A letter without an addressee, photographs in the wrong order, and a light that must stay on. Share two sets of clues to find one answer in each complete case.

How to play

Download and unzip the three-case HTML game, then open index.html in a compatible browser. On one device, close a clue card before passing it to the other player. Hints, answers with reasons, and complete story endings are included. One person can also read both sets of clues.

Language and format

Choose the English or Japanese game ZIP. Both contain the same three cases; you do not need both. Choose either an offline HTML game or the included English print-and-play PDF. The PDF contains 13 A4 pages with separate player clues, hints and complete answers/endings; print at actual size. It uses written photograph labels, not supplied photographs. The first-case free PDF has 5 pages. The PDF and game ZIP contain the same three cases; do not buy twice for the format. Phone HTML compatibility depends on the local viewer.

Try a different case free

Use “Download demo” below to save the complete free case Two Cards, One Way Home. It includes the answer and ending, and is different from the three paid cases. Unzip it and open index.html in a compatible browser. This separate free case is in Japanese. You can also play it online:

Two Cards, One Way Home

Want to play from text on a purchase page instead? Compare editions. The text-session edition is Japanese only. The game ZIP offers English and Japanese versions of the same cases; choose the format and language you want.

日本語

日本語・英語の無料一問は、下の「Download demo」からharbor-firstcase-bilingual-trial-v1.0.0.zipを選んで保存できます。すべて展開してindex.htmlを開き、言語を選んでください。「宛名のない手紙」の解答・結末まで無料で完結します。

本編の一通目「宛名のない手紙」をブラウザで無料で解く

一通目は解答・理由・結末まで無料です。有料の全3ケース合本には、この一通目と残り2ケース、合本の締めの物語を収録しています。無料の一通目を終えるための購入は不要です。

下の「Download demo」から、別作品「二枚の帰り道」を無料で保存して遊べます。解答・理由・結末まで無料で完結し、有料の3ケースとは異なる作品です。ZIPを展開し、対応ブラウザでindex.htmlを開いてください。

二人が別々の情報を持ち寄って解く、短い協力謎解き3ケースです。ヒント・解答と理由・完結した物語を収録。一人でも両方の情報を読んで遊べます。

この売場では同じ3ケースの日本語版・英語版HTMLゲームZIPと、英語の印刷用PDF（13ページ）を受け取れます。無料の印刷見本は一問の解答・結末まで含む5ページです。印刷版とゲーム版は同じケースのため、形式のために二重購入する必要はありません。どちらか好きな言語だけを選べば遊べます。展開し、対応ブラウザでindex.htmlを開いてください。一台で遊ぶ場合は、カードを閉じてから相手へ端末を渡します。スマホでは対応する閲覧アプリが必要です。

Use / 利用条件

For private noncommercial play with the purchaser present. Redistribution, resale, public uploads and commercial events are not included. AI-assisted original fiction. / 購入者が同席する私的な遊び向け。再配布・転売・公開アップロード・商用イベント利用は含みません。AIを用いて制作した架空の物語です。

US$3 minimum. Check the final total at checkout. / 最低US$3。最終額は決済画面で確認してください。

Pause and return together

The HTML editions let you save progress to a JSON file and restore it in the same language edition. Saving is manual. Cards and solution panels remain closed when restored; completed answers are checked again. Progress files are not interchangeable with the other language, PDF or text-session editions.