Description: A girl explores an iridescent world tree "Rainbow Yggdrasil" in a white world. Can she find the truth of the world? Color-changing game series from Otora Kobo! This time we present color change x roguelike! The base of Rainbow Yggdrasil is a traditional roguelike game, and the originality of this game is "color-changing". The color of the player, monsters, and even dungeon change into various colors. In this world, RGB itself becomes the parameter! Please experience this brand new game design.