Sudoku Classic Now Supports Trading Cards!
Thank you for enjoying Sudoku Classic. On September 24, 2026, Sudoku Classic added support for trading cards. We hope you'll give collecting them a try!

Developer posts and news about this game.

Thank you for enjoying Sudoku Classic. On September 24, 2026, Sudoku Classic added support for trading cards. We hope you'll give collecting them a try!

Thank you for enjoying Sudoku Classic. On May 26, 2026, Sudoku Classic passed SteamDeck compatibility review and was confirmed to run smoothly on Steam Deck. Thank you very much to all the users who submitted reviews to the article "Sharing information about SteamDeck compatibili

Thank you for playing "Sudoku Classic". On November 19, 2025, RucKyGAMES began distributing "Sudoku Relax". The order in which the games were developed was "Sudoku Relax" first, followed by "Sudoku Classic." Relax is too easy! You can't enter incorrect numbers! Based on these rev

RucKyGAMES ( The Steam® version of "Sudoku Relax" was released today, November 19, 2025. ✨️Sudoku Relax✨️ Intuitive operation: select numbers and then enter them "Sudoku Relax" is a Sudoku puzzle where you choose a number and then choose the square you want to fill in. This allow

Thank you for playing "Sudoku Classic". On October 22, 2025, RucKyGAMES began distributing "Add Cross". "Add Cross" is a pencil puzzle where you play by putting the numbers 1~9 inside the empty squares so that they become the numbers in the hint squares. Let's play casually with

On October 22, 2025, RucKyGAMES began distributing "Add Cross". 『Add Cross』 is a pencil puzzle where you play with the numbers 1~9 inside the empty squares so that they become the numbers in the hint squares. Let's play casually with light effects! What is "Add Cross"? - Numbers

We have released a new update to address a security issue reported in Unity. The version displayed on the title screen will remain at Ver. 1.1.4. After updating, please confirm that the build ID is "20332989." This update will not affect gameplay.

On September 5, 2025, we launched the store page for a game called "Add Cross." Write the numbers 1 through 9 one by one without repeating them, and add them all up to get the number in the puzzle square! This is a quick and easy pencil puzzle game.

On September 5, 2025, we launched the store page for a game called "Add Cross." Write the numbers 1 through 9 one by one without repeating them, and add them all up to get the number in the puzzle square! This is a quick and easy pencil puzzle game.

RucKyGAMES was interviewed on "Relaxing in the Dressing Room," a website for game creators run by Game Creators Guild Inc. The interview also covers "Gunma's Ambition -You and me are Gunma- Reiwa 2nd national census edition" as well as RucKyGAMES' development structure.

This game was developed to be playable comfortably with Steam Deck. We hope to pass the Steam Deck compatibility check. If you have played this game with Steam Deck, please post your impressions in this article. Your comments will be used as reference for the Steam Deck compatibi

Thank you for enjoying Sudoku Classic. Our Sudoku series, including Sudoku Classic, will be sold as packaged software for Nintendo Switch. * Release date March 27, 2025 * Title Sudoku Relax & Classic -Seasons Collection- © RucKyGAMES / published by G-MODE Corporation. Sales a

* Enabled to end the game from the game putts while playing with the game putts.( LB + RB press at the same time on the title screen) * Fixed the timer during play to be the correct number of seconds, no matter how many Hz refresh rate is. * I made other fine adjustments. This mo

Thank you for enjoying Sudoku Classic. We are pleased to announce that the sequel to Sudoku Classic, "Sudoku Classic 2", has been released for Nintendo Switch. While retaining the customizability and operability of the original Sudoku Classic... * The design has been completely r

Thank you for enjoying Sudoku Classic. On November 11, RucKyGAMES released a puzzle game called "Ruku's Heart Balloon". Like Sudoku Classic, it is a puzzle game made by thinking out a pleasant operation feeling. I'm glad you can play if you like. * "What is "Ruku's Heart Balloon"

Some images in Japanese and Spanish have been corrected. This does not affect the progress of the game. Ver 1.1.1

●Sudoku Classic BGM soundtrack has been released. Relaxing sounds from games can be used in everyday life♪ 1 Sun Shower 2 Shadows on the Windowsill 3 Light Beads 4 Rose & Lily 5 Check-Complete ●To commemorate the release of the soundtrack, we have started selling bundles of "

●Supports French, German, Italian, Spanish, Portuguese, simplified, traditional, Korean, Japanese, and English. ●The English text has been retranslated. ●Made minor corrections.