Gem Beast Arena

A free collection battle game where you recruit cute spirits across six elements and explore a fantasy world. Enjoy fast-paced turn-based battles with Attack, Skill, and Defend commands, level-up training, a spirit encyclopedia, a Spirit Spring you can play with free points alone, and generative BGM that shifts by area — all instantly playable on smartphone or PC.

A Canvas-based bullet-hell action game with character progression, where you choose between Noa, a girl from another world, and Ina, an amnesiac mage. Features a 3-stage campaign, wave and boss battles, difficulty settings, per-character EXP and upgrades, localStorage saves, achievements, and simple BGM/SFX with volume controls powered by the Web Audio API.

A watercolor storybook-style match-3 game where you line up candies to collect stars and coins, and rebuild a run-down town alongside animal friends.

An exploration-style music puzzle game spanning 40 stages across 5 worlds: Forest, Ice, Desert, Seabed, and Sky. Collect notes to play melodies, and enjoy the Sky world's floating winds and star bells, 40 sound spirits, rhythm bosses, daily challenges, and per-world and overall rankings on PC and smartphone.

A satisfying match-3 puzzle game where you swipe to swap gems on an 8x8 grid and clear matches of three or more. Features stage mode, 60-second time attack, endless mode, daily challenges, rankings, and Web Audio-powered music and sound effects.

A practice app that lets you play shogi against the computer entirely in your browser. It supports difficulty selection, captured pieces, promotion, game record saving and playback, and position restore, with a board that's easy to play on smartphones for casual practice anytime.