Lexicon Odyssey
A Japanese-learning RPG
$10.99
2.0 brings karaoke, anime study, weather forecasts and the Reverse World beyond 300 km. Learn Japanese between battles, burger orders and evenings at camp.
Learn Japanese, pack your equipment and set out from camp. Lexicon Odyssey is a single-player RPG where study cards, practice questions and spaced review accompany your journey.
START WITH KANA, OR PICK YOUR LEVEL
Begin with hiragana and katakana, or choose vocabulary and grammar grouped from N5 to N1. Read explanations and examples, listen to Japanese recordings, then recall what you have learned through different question types. Use gradual hints when you get stuck, revisit mistakes and review older material when it is due.
BUILD YOUR CHARACTER
Combine equipment, accessories and magic to suit your play style. Study while your character fights during expeditions, then take command in 3D duels. Listen for the key word in an enemy's chant to interrupt its attack. Beyond 300 km, the Reverse World opens into changing forests and new encounters. A bounty bestiary records the monsters you meet.
LEARN BETWEEN EXPEDITIONS
Run a burger shop and listen carefully to Japanese orders, including telephone orders as your shop grows. Take a quick vocabulary sprint, listen to the camp radio's weather forecast or join ten optional introductory grammar lessons. Read Japanese books with recordings and a listen-and-repeat mode.
SING, WATCH AND STUDY
Unlock a karaoke room with gold earned in the game. Listen to the original songs, study lyrics line by line with vocabulary and grammar notes, or sing along. If you enable the microphone, you can save recordings on your device and play them back.
Unlock the television to watch episodes of the Japanese anime Kosys! with your camp companions. Turn readings and translations on or off, open explanations at marked moments, take notes linked to the dialogue and finish with a review quiz. The room, television, songs and episodes are obtained with in-game gold. No real-money purchase is needed to unlock them.
A CAMP TO COME HOME TO
Meet companions, learn their stories and return to a camp that changes as your expedition advances. Learning progress and character growth are saved together, ready for your next session.
Study materials, recordings, songs and episodes are included in the download for offline play. No game account is required. This is a paid game with no ads, subscriptions or in-app purchases. Progress and karaoke recordings are stored locally. Sending optional feedback requires an internet connection.
The interface supports English, Japanese, Simplified Chinese and Traditional Chinese. Some word meanings and explanations use English in the Japanese interface. N5–N1 indicate content levels; the game is not an official exam and does not guarantee a passing score.
Requires iOS 18.4 or later.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Fixed an issue that prevented scrolling in Pomodoro settings on iPhone.
• Fixed a crash that could restart the app when repeatedly excluding already-known study cards during expeditions.
The developer, 立 宋, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 立 宋
- Size
- 2.2 GB
- Category
- Roleplaying
- Compatibility
Requires iOS 18.4 or later.
- iPhone
Requires iOS 18.4 or later. - iPad
Requires iPadOS 18.4 or later.
- iPhone
- Languages
English and 3 more
- English, Japanese, Simplified Chinese, Traditional Chinese
- Age Rating
13+
- 13+
- Frequent
Cartoon or Fantasy Violence
Guns or Other Weapons
Infrequent
Profanity or Crude Humor
Mature or Suggestive Themes
Horror/Fear Themes
Alcohol, Tobacco, Drug Use or References
Contains
Loot Boxes
- Copyright
- © 2026 kona

