東方放置譚 is a free iPhone game developed by KAZUHIRO OKAUCHI. This game offers a backup/restore feature along with a new BGM playback functionality. It introduces a 3D idle game with auto-battle mechanics and vibrant 3D effects. Players can enjoy character development and immerse themselves in a plethora of content. It's important to note that this game is a derivative work based on the Touhou Project, and all copyrights related to the game's characters and world belong to Shanghai Alice Gengakudan and ZUN.

In 東方放置譚, players can explore a variety of characters illustrated by different artists and enjoy a range of background music and sound effects. The game boasts an array of character voices, exploration backgrounds, item icons, magic circles, UI backgrounds, and fonts. The project's planning and program development are credited to KAZUHIRO OKAUCHI, who also created the 3D character models for the game.